How to rebuild proportioning valve. Here is the valve as it was when I removed it.

How to rebuild proportioning valve Four wheel disc valves are also available. With no proportioning valve, normally "one end" of the car will lock up way before the other, a prop valve has nothing to do with whether it "stops at all" or how hard you push or how far the pedal goes. Follow Manufacturer Instructions: Always refer to the vehicle’s manual or the valve manufacturer’s instructions for specific resetting procedures. com What complicates things is the add/delete sheets for 65-66 GT350's show they actually had a different Ford part# prop valve than non-Shelby disc brake cars. Proportioning Valve Kit Build Sheet 1 The rear proportioning valve needs to be adjusted correctly especially after a suspension lift. This minimizes rear wheels lockup as weight is reduced on the rear axle. It uses a one-piece inner piston assembly. Plug, Brake Proportioning Valve, Bear Brakes, Incl (1) Correct Plug, (1) Proper O Ring, Designed To Be Used When Converting To Rear Disc Brakes, Plugs Proportioning Valve End, Installation You need a proportioning valve for a car that was originally equipped with disc brakes. Cancel Search. View all applications (1) $24. I had mine rebuilt by White Post The op isn't asking about buying a replacement proportioning valve, if he can't find a "rebuilding kit" He's inquiring, asking, about a "kit" so he can rebuild his existing one. Would removing the proportioning valve mess up or set off the abs light? My truck is a '92 with rear wheel abs. In order to completely rebuild your valve also buy 2B091-1BK. the least pressure to the rear, and your rear brakes are still locking up first, or too soon, then either one of these things is happening: Also, do I need to adjust the proportioning valve somehow because I've recently installing an Add-a-Leaf kit, raising my rear end by an inch and a half? Tundra Solutions Forum - the best community to talk, mods, price, repair and research your Toyota! Show Less . This works much better with someone inside the truck while you use a AutoMD shows us how to replace a proportioning valve. Mk1 Scirocco like Hal mentioned) use the Ø14. Depressurize the Brake System: To avoid injury and ensure safety, release pressure from the brake system by disconnecting the brake lines or loosening the bleeder screws. #M-2R478-1A. It is only designed to light the brake light and the block contains a safety switch and a proportioning valve. In the past we sold a kit that did only the proportioning valve. It is a spring-loaded component that activates when fluid pressure builds when you step on the brake pedal. you then need to put a stop in it when you pedal They will rust if left exposed to air and brake fluid mix. valve. The switch in the center of the combination (proportioning) valve is the one you want to reset. Link below. FABO Gold Member. Thought it was something to do with a faulty e brake (even rho the e brake worked). It looks like GM nor anyone else makes a direct fit replacement for our vans anymore. #2 If the valve is tripped the light will be on. Speedway 1960-70 Ford Style Proportioning Valve for Disc Drum Brakes (8) Proportioning Valve Type: Fixed. 1983 - 2012 Ranger & B-Series - Proportioner valve stripped threads problem - Hi all. Elsewhere on this website we have discussed (in painful detail some would add) the importance of front-to-rear bias, or brake balance, and how its optimization can lead to better braking performance. These are the valves I have found new witch one would be closet to 40/40 and best for circuit racing trying to avoid rear lock up. T. BrakeBest Select Brake Proportioning Valve - NMC23358. Take a 13/16 wrench and remove the spring loaded end,remove the Proportioning Valve-fix/unstick/rebuild - Jump to Latest 17K views 6 replies 4 participants last post by illflem Jun 17, 2010. Add to Cart. I have reinstalled and no leaks!! That's the good news, The proportional valve is only used with disc. the problem is that my pedal is incredibly grabby now. Insert the proportioning valve piston (the red The rebuild process was easy and fortunately my proportioning valve was not pitted inside and cleaned up nicely. Scott Drake | #425C5ZZ2B257A. I spoke with Dr Includes all required internal seals to rebuild the proportioning valve. The "rebuild" process is more of a disassemble, clean and Home > Vehicle Repair > Brake Tools > OTC (OTC7853) Proportioning Valve Depressor for ABS Brake Systems . I then added an adjustable proportioning valve below the master cylinder, thanks to the design of The proportioning valve only lets a certain portion of the pressure through to the rear wheels so that the front wheels apply more braking force. The difference in the two seal types is shown in the picture below. I just disassembled mine and cleaned it up. Careers; Company Overview; Investor Relations; Newsroom; Legal The Wagner valves are identified by Ford engineering numbers that are stamped into the body of the valve. 85 c20. Appl Website: http://TheRamManINC. C. 2Gen-Tundra 1Gen-Tundra 1Gen-Sequoia Page 2-13 Fig. The parts in this kit can be used to rebuild the following valves (identified by both Visit http://www. Does anyone have a picture how to install a adjustable proportioning valve in a 69, power brake, Fwd disc and Aft drum? A0707-1 Mustang SSBC Adjustable Brake Proportioning Valve | CJ Pony Parts 1969 Mercury Cougar / Ford Mustang / Torino Disc Brake Proportioning Valve / Distribution Block Seal & Rebuild Kit - New (5302) at West Coast 3. When originality doesn't matter most people use the inexpensive modern dial type. We always have a way to adjust our brake bias in our competition cars. 95. In the combination valve (Proportioning valve) it might be possible that the actual valve inside is stuck in one direction or the other which will reduce or eliminate fluid getting to the blocked off side (circuit). Also a further note: The valve found at the left rear side of the floorboard on the 67 and mounted on the distribution block on the 68-up cars is not a proportioning valve at all. Hooker super comp, Turbo 400 fresh rebuild, 2800 stall, 3. Explore Our Forums. 00 About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Because drum brakes lock up more easily than disc brakes, vehicles with rear drums use a proportioning valve to moderate the pressure to them. The problem can be small steel parts and springs that rust and dissolve. In a few weeks I should be able to offer a rebuild kit for both the proportioning valve and distribution block that includes all of the needed seals and the spring for the proportioning I think reduction of pressure to the rear brakes provided by even a so-so valve may still be a good thing. Our Do It Yourself and auto expert community has you covered with this Repair-apedia of easy step-b When setting up a street car for performance driving or converting a classic to disc brakes, it is essential to include an adjustable proportioning valve in your brake system. 258. The prop valve can be made as part of the combination valve, or it can be separate from it. Anyway, who have others been buying from, to rebuild the valve on our A, B, and E body Mopars? Anyone got a business HEI Full Disassembly and Rebuild: Forum Discussion Here — Photo Gallery Here Rebuilding/restoring Saginaw Power Steering Gearbox: Firstly, I've mistakingly labeled this thread as Proportioning Valve it's actually a Hold Off Valve. Fronts are Cordoba 11. com . calvin17d Discussion starter. the 3/4 and 1 tons do not have the proportioning valve, just the hold off, and warning switch, and called a combination valve. i also got rid of the factory valves below the master cylinder. Front lines are fine. WHY you need it. I can't find a source for a new valve assembly. Brake proportioning valve problems can cause rear-wheel lockup, longer stopping distances, and inconsistent braking performance. A Universal proportioning valves and proportioning valve parts and more classic car and classic truck brake parts at PerformanceOnline. It lights the brake warning light on the dash there is a malfunction in the front or rear hydraulic circuit causing one or the other to lose pressure. I believe Paragon Reproductions will rebuild them for you. I found their website very informative on how to identify what valve I had, and how to strip and re-assemble it. Just a short video on rebuilding a Honda proportioning valve. I read that the combination valve is an enhancement to the original style Proportioning Valve. So, you can't just gut the valve, you have to remove it and then splice the gap that now exists in the front brake line (I just made a whole new line). For those who have raised the suspension, it might assist in setting the valve to the correct position, using the extension arm that is available for most lift kits: Ford Thunderbird Brake Proportioning Valve Rebuild Kit Fitment: 1965 Ford Thunderbird; 1966 Ford Thunderbird; CA Residents: WARNING: Cancer and Reproductive Harm - www. Deeper Inspection Whether or not you take the additional steps to inspect or diagnose a vehicle’s hydraulic proportioning valve will depend on the following: The proportioning valve was not resetting and most of the problem I think. valve should have two outlets for the front wheels, one for each side, just put a brass tee in place of the stock prop. The informed and experienced DIYer can tackle the diagnosis and repair of the brake proportioning valve in a few hours, but proper bleeding and diagnostic procedures must be understood and followed. A little clarification is in order here. gov. It simply holds pressure in the line after the pedal is released. I've recently installed a Dr Diff 10. The valve stops the flow, or pressure of brake fluid to the rear drum brakes The shuttle piston wouldn't budge with the normal centering procedure so decided to rebuild. Screw the switch assembly into the valve body to complete the rebuild. This kit is known to work for the following combination valves: Proportioning valve seals; Proportioning valve spring; Copper crush washer; About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Brake fluid was oozing from two plastic plugs in the tops of two hex plugs. Full Forum Listing. Proper service procedure requires that a proportioning valve depressor on the 4WAL unit when pressure bleeding the brake system. Had a red brake light on in the dash for months. The only bad thing is if it needs a new sleeve. you can buy brake fluid proof seals from an o ring/seal supplier but must calculate the size/. Tech Support; the block contains a safety switch and a proportioning valve. Even though Ford trucks did not have disc brakes until '75/'76, the cars had them as far back as at least '66 and GM was using them earlier still Visit http://www. Get it in Stereo!!! The only substitution for cubic E) Proportioning Valve Adjustment 1) The proportioning valve in the Prop Block will be used to adjust the rear brake pressure of the vehicle. In this video, I walk you through removing and replacing a shower mixing valve. Can these be rebuilt, perhaps with new O rings? Proportioning Valve Plumbing The most common proportioning valve plumbing is shown below. In this video I show in detail how to quickly remove a proportioning valve from a Ford Mustang II. There are also a couple non-factory style metering valves, and combination valves available, which are cheaper. finally asked about the light and was told it could be an indication of a more serious problem with my hydraulic system. Cheers . Basically disconnect proportioning valve hex body from the rear side, remove the rubber piston from the isolation valve, and then reassemble. automd. Proper valve replacement by a professional mechanic ensures balanced braking performance, minimizing I tried the rebuild kit from MCR - worked ok but in the end I just could not get the proportioning valve plug near the bottom to seal. valve,(one in two out). I believe only the J-56 heavy duty brake option included a true brake proportioning valve. If the light stays on check the parking brake switch. This involves disconnecting the brake lines from the old valve, removing the valve, and installing a new one. STAMPED HERE DESCRIPTION OF THE BP-1™ VALVES The BP-1 ™ brake proportioning A Proportioning valve goes in the rear brake line to decrease pressure to the rear brakes. So, the last resort was disconnecting the brake line from the top of the valve. So, I went to the front and loosened the line from the front of the proportioning valve and still no fluid. I had a leak in my rear brake line near the axle. drum cars, whereas a distribution block is still used with drum/drum cars as well. I did a ton of If there is a sudden loss of pressure in the front or rear brake circuit the proportioning valve has a little spool shaped valve that moves over and shuts flow to that side. It works like new. This document describes how to rebuild the valve using a new seal kit available from Muscle Car Research LLC. ×RQ$2×"×!åUÿnÁà»íë¦Aàx8Ö jȈ¥øç5} )Ó‰K ªp¬(æ­ t›–~p TX) UÍrÀ†U_Îìt ;Àtª3 % ™¦ºDA K ã‘P޽;ãÍ4_ »z† ŠLÓ ÔlæB‘HËDW=1žkdi¾ƒ Our proportioning valves provide four functions: 1. YES I would recommend this product. Not finding an answer? Anyone have some photos of their rear axle with the height leveling proportion valve? I have seen the photos from the manual, but would like some up close photos of the linkage to the valve, and the bracket from anyone that has a functional valve. You can also purchase the rebuild kits and do it yourself. Bendix® BP-1™ Brake Proportioning Valves FIGURE 1 BP-1™ BRAKE PROPORTIONING VALVES 1. Kit consist of 2 o-rings and a seal. Adjustable proportioning valves are essentially pressur e reducing valves and are often utilized in disc/drum and drum/drum braking systems. Can anyone tell me how to reset a *1970* brake distribution block if the valve has switched to the front brakes? Also, should I remove it and rebuild it? Yes you are correct--Rebuild the valve. An alternative plumbing method is to plug off the top front line and have the bottom front line go to a “T” fitting. Noting most all 67 with factory disc had proportioning valve or rear axle. The front brake line should run from the MC to the stock prop. I took off the front fittings and attached them to the new valve. The Kit for both valves: 1967 - 1969 Wagner Brake Pressure Differential and Control Valve Kit | Muscle Car Research LLC Kit for the pressure control valve alone: 1967 - 1969 Wagner Brake Pressure Control Valve Kit | Muscle Car Research LLC In the interest of complete disclosure I'm the guy that makes and sells these rebuild kits. I've often questioned how effective it is and the SN95 combo valve is. There is no way to check operation on this type of valve unless it has failed completely. If you set the prop valve so the restriction is maxed out, i. S1 Brake proportoning valve identification/rebuild. Reset proportioning valve on '99 S10 4. Style "B" is Muscle Car Research is proud to offer this proportioning valve rebuild kit for the cast iron Kelsey-Hayes combination brake valve used by AMC, Chrysler, Ford, and GM during the 1970s and 1980s. Brakes bled fine after cleaning and installing this kit. If the light goes off then the valve has to be recentered. If the brake proportioning valve is worn out or damaged beyond repair, it will need to be replaced. I do not see it. So how does it work? Well, under normal braking use, the poppet of Description: Disc Brake Proportioning Valve Rebuild Kit Year: 1967-1969 Model: Mustang, Shelby, & Cougar with front disc brakes Jack's Comments: This is everything you need to rebuild your stock Ford disc brake proportioning valve. EASY to understand. it's time to pull the prop valve, get a rebuild kit from musclecarresearch. Scott Hollenbeck Administrator, Mustang 428 Cobra Jet Registry Owner There is a part 1 and part 2 video. I eliminated the metering valve while all the parts were off the car - but I left it in place so it Use only when the proportioning valve is mounted near the distribution block. I hope you'll share with us how you rebuild a proportioning valve. My brake proportioning valve is the type with threaded ends on it but i was There is also a pin on the proportioning valve that is supposed to be held in the out position during bleeding on some older Broncos. During brake bleeding a tool can be used to keep the internal valve centere The PV, is a flow restrictor of sort. this valve contains 2 seals. Install the u-cup seal (slotted-side facing out) and large o-ring on the plug. The proportioning valve, also called the combination valve, is located in the disc braking system. If anything, the stock combo valve is really more of a metering valve setup anyway designed for rear drum brakes. Any photos available of the location? I am trying to isolate the cause of the constant ABS light and Brake light on the dash. And A while ago I pulled my drum brakes from the front of my 1975 Ford Bronco and installed disc brakes but I never replaced the proportioning valve. I know the valve is supposed to limit the amount of brake pressure to the rear wheels, and keep them from locking up during hard stops, but wouldnt the abs do the same thing, even with the valve removed? Today I pulled my proportioning valve (67 Cylinder Type) the center rubber ring looks pretty worn and is brittle and cracking, but it was working with no problems. Metering valve to apply pressure to the rear brakes before the front brakes 4. Spoke DISCLAIMER: These videos show my way of doing things. Helps eliminate the pedal drop before engaging the rear brakes, keeps alittle pressure in the lines ~10 pounds. Part #: NMC23358 Line: BHH. Even after cleaning all the gunk out. Step 9: Removing intake and exhaust Or save housing and install guts from a never version if they got damaged from water corrosion (springs) The proportioning valve is also a pretty simple valve to repair or The valve is not hard to rebuild so I would say have a go at it rather than buy new. Skip to 3:38 for step-by-step instructions. Submitted on September 15, 2024 by Jim O. once brakes are bled remove the tool and replace the light. The combination valve is responsible for metering fluid to disc brakes, as well as fulfilling tasks done by both the pressure differential switch and proportioning valve (which is responsible for reducing the fluid pressure in the lines leading to the rear drum brakes). All seals are high quality. (seal was the culprit) There is another rubber piece inside the valve that wasn't included in kit. The later 71 and 72 Chevelles came with the metering valve built into the distribution block and have a larger rear brake line fitting. of scR motorsports. Ignoring issues with the valve can lead to rear wheel lock-up, loss of control during braking, and compromised braking efficiency. To reset the proportioning valve I read that you could take a small sledge hammer and hit the brake pedal, I had about 10-12 inches of travel so it was not a massive hit and it reset. WHAT it does. Tips for Resetting Different Valve Types. 1)- PB Blaster for a week on brake line fittings. two people would help. gently step on the pedal and check the valve Buy part #2B091-1BK Proportioning Valve Rebuild Kit for your classic 1965-1966 Mustang from National Parts Depot. Select the location for bulkhead mounting the proportioning valve that allows easy access to the adjusting handle (knob). Here is what CPP suggests: The dash brake light is on so I assume the Valve Type Service Part Number Engineering Number(s) Pressure Differential Valve (Combination Proportioning and Differential Valve) D0OZ-2B257-C D0OA-2B328-D D2ZA The rebuild process was easy and fortunately my proportioning valve was not pitted inside and cleaned up nicely. Scott Drake C5ZZ-2B257-A 64-73 Ford Tried to hold in proportioning valve reset button per manual with small clamp (no tool). DELIVERY PORT 1/8 P. The parts in this kit can be used to rebuild the following valves (identified by both service part number and engineering part number): Valve Type Service Part Number Engineering Number(s) Pressure Control Valve (Proportioning Valve) Proportioning valve replacement is an easy task as long as a good knowledge of hydraulic system maintenance and operation is understood. That worked, but now I know the combination valve was the problem, so it's time to rebuild or replace. The proportional valve is only used with disc. I had mine rebuilt by White Post and it is leaking. I replumbed the system, as part of a four wheel disc conversion, and used a solid line front to back to eliminate the valve and replace it with line clamp. your lite is on because it has switched from one side to the other due to a previous leak or brake bleeding. Proportioning Valve is also known as Brake metering valve or Distribution block. Services a wide variety of GM I've taken out my rear brake lines and calipers to rebuild the back half of the braking system. Although 65/66' GT's and Shelby's came standard with disc brakes from the factory, they were available as an additional cost on any V8 car with just a check mark on You need to take it apart and see the condition. SUPPLY PORT 3/8 P. Not knowing the problem was the combination valve, I installed a Kelsey Hayes adjustable metering valve, from Ford Racing, on the rear brake line. A brake warning light to detect a loss in pressure Proportioning Valve Plumbing Diagram: There are two proportioning valve lines that connect to the Two, the old connection dimpled the inside of the proportioning valve and the new line doesn't fit the old dimple. com, and rebuild it. An online search showed that a replacement was around $118. What makes our kit different? Our exclusive 1/8 NPT to M10 inverted flare adapter. Looking inside the combination valve will make it clearer. I don’t know if the supply cha 1965-1966 Disc Brake Proportioning Valve Rebuild. ; Check for Leaks: Ensure that all there is a tool that holds the valve centered while you bleed the brakes . Install the piston seal on the end of the piston with the flat side on the short end of the piston. Because I wanted adjustability, I replaced the stock KH valve with an aftermarket adjustable unit. Lilly Stella and Daddy's The proportioning valve determines the percentages of brake fluid directed to the front and rear brakes to ensure safe braking. I'm doing a rebuild from a while ago and think I have misplaced some parts. any 4 wheel disc toyota master cylinder should work as long as the bolt pattern is the same. by James Walker, Jr. They do no proportioning on front brakes After many months of stops and starts on working on my brakes, I think my original problem was the proportioning valve. Base 9 piece kit: 7 seals, washer and 302 stainless steel spring. The objective is to balance the pressure of the rear brakes to the front so that under hard braking, the rear brakes do not lock up before the fronts. $71. Pull the small rubber cover off the front of the proportion valve and put a rag under it,a small amount of brake fluid will come out. Does anyone know how to disassemble or rebuild the brake proportioning valve on 67 Disc brake ? The barrel shaped valve above the rearend ? email direct Red67GT@Yahoo. Jim C. Port Quantity: 3-Port. 3)- Replace proportioning valve. Find an Automotive Service Professional near you. Since the This document describes how to rebuild the Wagner brake pressure differential valve (sometimes called a "distribution block") and front disk brake pressure control valve (sometimes called a "proportioning valve") used on Ford and 1965-1966 Disc Brake Proportioning Valve Rebuild. i no longer have that info. Apparently, the 1970 distribution blocks are different in that a proportioning valve is built-in; no external valve. PV2 is for Front Disc brakes and Rear drum brakes. I've had a real slow leak for a while and now it is leaking much faster. Brake Line and Proportioning Valve Install Tips F100 Episode 457 AutorestomodWe install a set of NPD brake lines and a Brake Proportioning valve on our F100. Rebuilds both original units, Instruction sheet can be downloaded from our web site. I did just that on my 1993 Jeep Grand Cherokee ZJ by swapping We had an unexplained brake fluid leak, as it turns out it was the load sensing valve. 4)- Flush brake system-bleed & adjust This video will show you how to replace the brake proportioning valve on a 1987-1995 Jeep Wrangler YJ. So if you have a disc drum, then you do indeed have A Kelsey Hayes disc brake proportioning valve was originally installed on the 65-66 Mustangs with factory front disc brakes. 5 . If you’ve been using disc/drum with a drum brake master you shouldn’t have been. The proportioning valve modulates pressure to the rear brakes so that as weight is transferred to the front wheels under heavy braking loads and pressure on the system is increasing, less and less pressure is being applied to the rear brakes. Does anyone know where I can get a proportioning valve rebuild kit for a 69 Z28? It is the original prop. 75" rotors and factory rebuilt new stock calipers; steel braided lines. As I stated originally, there is a lot of confusion about this piece. The valve is used to control front-to-rear brake pressure bias and will work for all types of vehicles. 3 cylinders (171 611 051 B). If you know of a site or other valves I could get new please let me know. If the proportioning valve were set to 70 percent and the brake pressure were 1,000 pounds per square inch (psi) for the front brakes, the rear brakes would get 700 psi. Not me. Here is the valve as it was when I removed it. PerformanceOnline. All 65/66 disc brakes cars include a proportioning valve for the rear drum brakes. The front of my proportioning valve started to leak br TESTING THE PROPORTIONING VALVE for proper operation: 1/2"-20 7/16"-24 9/16"-18 3/8"-24 3/8"-24 Install lines as shown in diagram: The most common proportioning valve plumbing is shown. be/5t The proportioning valve modulates pressure to the rear brakes so that as weight is transferred to the front wheels under heavy braking loads and pressure on the system is increasing, less and less pressure is being applied to the rear brakes. No questions about this product yet. C1 & C2 Corvettes - J-56 Proportioning Valve - 66 - Does anyone know where I can get a rebuild kit for the Kelsey Hayes proportioning valve. Im in the process of rebuilding my brake proportioning valve. 3 Jump to Latest 12K views 13 replies 5 participants last post by OpalLacod Mar 22, 2022 UPDATE ON ROUND PROPORTIONING VALVE REBUILD. The valve may have failed due to many reasons, including debris in The proportioning valve may be a stand-alone valve, part of the combination valve, or built into the master cylinder. residual check valve 3. Save Share Reply Quote Like. Questions & Answers . You will need to buy the 70-73 Mustang DISC BRAKE proportioning valve kit. For 73 should be a combination valve. I know the valve is supposed to limit the amount of brake pressure to the rear wheels, and keep them from locking up during hard stops, but wouldnt the abs do the same thing, even with the valve removed? Kelsey Hayes brake proportioning valve. valve and put the new adj. If I remember correctly it’s 10LB AFAIK, No one is reproducing the original K-H proportioning valve. 99 /each. Gary I think reduction of pressure to the rear brakes provided by even a so-so valve may still be a good thing. The proportion valve below the master cylinder is bad enough stock but a little wear on the oring on the slide totally reduces braking in the rear. of Shelby Parts and Restoration in Green Bay WI does the Best job of restoring them of anyone I know of. com! Free shipping over $300, fast delivery & everyday low pricing! REBUILD KIT, PROPORTIONING VALVE AND DISTRIBUTION BLOCK #2B091-3AK. Sometimes people install the wrong valve. prop valve in '73 and later Z's because the valve uses pressure to the front, right caliper to modulate pressure to the rear brakes. com. I have a 97 Ranger 2. Adjustable proportioning valves let you tune that cut-off pressure. Top Brands The factory proportioning valve is on a frame rail, below and forward of the driver's seat. Our Do It Yourself and auto expert community has you covered with this Repair-apedia of easy step-b I found this diagram by accident in the manual, explaining how to adjust the load sensing valve in the Patrol (I assume that it applies to all models). I believe the kit was about $35 and labor $45. It was no better quality than what Ford did in the day which of course was never designed to last 30 or more years. To check, I can feel the metering valve extend when brake pedal is pushed. Guy’s help me get to 20k subscribers! I have so many aweso I was reluctant to remove the proportioning valve because of the likelyhood of frozen fittings and having to replace so many brake lines. The valve was stripped down and found that two tiny O rings (4 mm ID, 7 mm OD, 1. 7" rear disc setup onto my "72 Challenger. Picture of my 67 with disc, a late 67. good luck! Identify the Location of the Proportioning Valve: The proportioning valve is typically located near the master cylinder or on the vehicle’s frame. For disc you have the meter valve, proportioning valve, distribution and warning all in one block. The pic to the right is the Mustang/Cougar assembly. It just reduces the amount of pressure past it proportionally to input pressure. What does the rubber center ring do? I know cobra automotive has a rebuild kit but do I need to rebuild it? I was hoping to finish brakes tomorrow. push the pedal). Search. 08 rear gear (for now). Sort By: Compare. When it comes to proportioning valves it's a different story. If you know the basics, scroll past the soldering portion to save some time. I've been reading I just didn't know the proportioning valve was different, but it makes sense now that I think about it since the disc/drum combo locks up a different rates that have to be accounted for in the valve. Material Type: Brass. The Proportioning valve was separate, used for disc brakes, no switch with it. The kits are very reasonably priced/good quality and well worth purchasing. 72 C10 lwb fleetside -stock After you repair what ever cased the fluid lose in the rear circuit, you then get setup to center the plunger. I have reinstalled and no leaks!! That's the good news, bad news is the power brake booster is shot so have no power assist with my virtually new braking system. Make sure that the location allows room for the hydraulic lines and access. Proportion pressure front and rear 2. Lever Proportioning Valves (Image/Wilwood) Lever proportioning valves are also adjustable, but use a lever rather than a turn knob to adjust the rear brakes. D. I was curious as to how the stock proportioning valve works and I disassembled it to get the crud out and check to make sure it's in good condition. In a separate video, the proportioning valve resided along the bottom of the front radiator area. Tried several things - less / more tight - sourced (100) new o-rings - still slow leak when installed. Page 1 of 2 - BRAKE PROPORTIONING VALVE - posted in Brakes, Wheels and Tyres: Just woundering if anyone has a photo of a hoden brake proportioning valve so i know how to pull it abart and put back together. Chevelles did not come from the factory with a proportioning valve. A Proportioning Valve has the job of restricting the amount of brake pressure sent to the rear of a brake system under heavy or severe braking. i used a FZJ80 master for 4 wheel disc and no proportioning valve at all, works great. You are responsible for your actions. About Us. If the rebuild can't be done, I'll have to go with a Wilwood adjustable combo valve. PERFORMANCE PARTS FOR YOUR CLASSICS! Local: 714-278-0098 TF: 800-638-1703. 1 - 8 of 8 results for Brake Proportioning Valve Compare Filter/Refine. Brake proportioning valves work exclusively with rear brakes. you then need to put a stop in it when you pedal This modification can be done if you've switched from rear drum brakes to rear disc brakes or if you already have rear disc brakes and just want a little mor The distribution valve merely directly fluid to multiple locations (exactly like the block on the rearend). e. Accord: 46210-SM4-A05 46210-SV4 inlet of the proportioning valve. You might try loosening and re-tightening the fitting a few times to see if you can get them to conform to each other. It’s essential to adjust the valve gradually and test the brakes after each adjustment to ensure that you achieve the optimal balance between the front and rear brakes. Muscle car research has the rebuild for this. 7 shows the differential valve with the proportioning valve assembled to it. The stock prop. Tags: 4 wheel disc brakes brake line brake switch 1973 - 1979 F-100 & Larger F-Series Trucks - Rebuilding Brake Proportioning Valve - How does one rebuild a brake proportioning valve? Does the metering valve and pressure differential valve come out of the bpv assebly? If so, how? Also, where does one get a seal kit for it? It came off a '74 f100. Check out ppst 9 of this thread: 1973 - 1979 F-100 & Larger F-Series Trucks - proportioning valve 'rebuild' kit by Ford - Didn't Ford make a rebuild kit (springs, seals, rings) for the proportioning valve 85 c20. Not the OEM. Super important, and really only an issue when you go changing stuff. The 69 distribution block is very small and brass Muscle Car Research is proud to offer a rebuild kit for the early 1970s Ford disc brake combination pressure differential and rear brake pressure control valve made by Kelsey-Hayes and Wagner. before the rear end swap (I had the factory 8” with rear drums) I bought a proportioning valve for a 1970 mustang. 1968-1969 Mustang. Well, now I have my next Jeep project. The pedal felt great! During the rear end swap, I installed an adjustable proportioning Valve on the rear line and that seems to be dialed in ok (no rear bias). Mustang Disc Brake Proportioning Valve Shop OE style Proportioning Valve / Distribution Block / Rebuild Kits for your classic Proportioning Valve & Distribution Block at NPDLink. For clarification, a stock proportioning valve is much more than that, the correct term is “combination valve,” as it does multiple things. apparently there is a proportioning valve or also called a combination valve that, when one brake system fails, The proportioning valve typically connects the master cylinder to the rest of the braking system, but sometimes it is independent of the cylinder. Joined Dec 22, 2009 Messages 8,086 Reaction score Never had to look before. Unless you removed the residual pressure valve from the master, but even if you did that you still didn’t have proper proportioning of it didn’t have the disc pro valve Tried to hold in proportioning valve reset button per manual with small clamp (no tool). Also, I'd like to add The Wagner valves are identified by Ford engineering numbers that are stamped into the body of the valve. Our kit does both the distribution block and proportioning valve with quality parts that should never go bad. NBS Brake Supplies Try these guys they can rebuild your valve Not knowing the problem was the combination valve, I installed a Kelsey Hayes adjustable metering valve, from Ford Racing, on the rear brake line. You unscrew it The D7DA-2B328-AB valve uses an o-ring in place of the u-cup seal found in the earlier valve. Reading that you can use prop valves meant for drums that the difference is very little between the valves. 2)- Remove and rebuild brake master cylinder. This Combination valve for GM cars. These types of valves are typically ran in line with the rear brake lines. In modern cars that employ combination valves, replacing the entire valve body is necessary if the proportioning valve fails. Proportioning valve spring; Piston He was nice enough to expain to me how he pulled it apart and what he did to repair them. JS . Then when I Slowly press the pedal with steady pressure a number of times until the light goes out; this will center the differential valve. Voila! Conversion complete!. I am in no way responsible for any actions you do after watching this video. Style "A" is the "later" version and the most common. Ask the First Question. P65Warnings. For best results on 4WAL, use two of these depressors, one for each valve. So I disassembled the Proportioning/RABS valve, and it was full of gunk. But when you prefer to have the stock look, then you will have to buy a restored unit. You may also hear a pop come from the proportioning When I replced mine I had my wife watch the fluid level in the resevoir and keep it full. Jump to Latest Vehicles without any proportioning valve (e. I could not get any fluid out of the rear port. 340” MOUNTING HOLES (2) I. Use only when proportioning valve is mounted near the distribution block. Many plumb it differently and use availible adjustable proportioning valve. When it comes to master cylinders, I think you're correct about brass sleeves, etc. I shopped around looking for this part. The "very late" built ones had them up 1973 - 1979 F-100 & Larger F-Series Trucks - Rebuilding Brake Proportioning Valve - How does one rebuild a brake proportioning valve? Does the metering valve and pressure differential valve come out of the bpv assebly? If so, how? Also, where does one get a seal kit for it? It came off a '74 f100. This looks like the common SAE Brake proportioning valve rebuild kits, question? Thread starter hemi71x; Start date Feb 18, 2019 - hemi71x FABO Gold Member. So if you have a disc drum, then you do indeed have a proportioning valve, but not what you show in the pic. Same function as the C7OA tube type. This valve is necessary for optimizing front-to-rear bias, also referred to as brake balance. com High Performance Parts for Classic Cars & Trucks. g. The PV, is a flow restrictor of sort. 1 Reply. AFAIK, No one is reproducing the original K-H proportioning valve. Then I removed the rear Take a picture of the valve. Most of Not every block in a GM muscle car brake system is a proportioning valve. One side is pretty easy. Thank you for directing me to just the right place. If it's all C3 Tech/Performance - 1969 Brake Proportioning Valve - or whatever it does. 2. Several places sell the valve, though most incorrectly call it a proportioning valve. CONTROL PORT PIECE NO. Rather than discuss the function of this part, this post is more about Brake proportioning valve rebuild - posted in Brakes, Wheels and Tyres: Gday all. 95 + shipping. Thanks for any help. This works much better with someone inside the truck while you use a wrench on Would removing the proportioning valve mess up or set off the abs light? My truck is a '92 with rear wheel abs. Instruction sheet can be downloaded from our website. It’s a check valve. ca. There is also a pin on the proportioning valve that is supposed to be held in the out position during bleeding on some older Broncos. Long story the proportioning valve is part of that assembly. In replacing it, I stripped the threads on the proportioning valve- turning a $10 repair into something significantly more. Just delete the stock prop. Repair Harness, Brake Fluid Sensor, Designed To Replace Factory Style Plug, This Is The Plug The Goes Into The Brake Master Cyl Reservoir. Hopefully someone can help. Muscle car research sell the The proportioning portion of the two valves is identical, so let's start there. 246 posts · Joined 2007 Add to quote; Only show this user #1 · Jun 15, 2010. Don't necessarily follow my advice, I could be wrong. Thia assembly is harc to find (only used or rebuiltno repro no direct replacement) and usually very pricey. It seemed like the rear cylinders might have been sucking air back in but I am not sure. I did just that on my 1993 Jeep Grand Cherokee ZJ by swapping The proportioning portion of the two valves is identical, so let's start there. This proportioning valve also comes with a pressure switch that can be used to turn your brake lights on when you pressurize the system (i. You can buy aftermarket adjustable valves, and add them into the system, leaving the original distribution block/ warning switch in place To maintain peak braking performance and guarantee safety on the road, timely replacement of a failing proportioning valve is vital. The outlet of the proportioning valve is connected to the line leading to the caliper(s). apparently there is a proportioning valve or also called a combination valve that, when one brake system fails, Proportioning valves do not function like "normal" valves, as they limit, but do not totally shut off pressure to the rears Fixed (factory production) After you repair what ever cased the fluid lose in the rear circuit, you then get setup to center the plunger. The dash brake light stays on. ÑpÄ >™Îï®Ëé ¶4pKi²ge#Àƒ±¼B ó÷¦Ø‚xâ6dÙ?÷C‰T j±} \‰9ÉÇ2 @uSÌŽ% Kd JµÇpuñ R Ø:‘Ñ™ )ô1ðSlÏu§m;4f¶ îµnrÓneâƒë¾›œê{¦E0“°úò # °½Ð 9ß‹ nD. I have recorded what I have done for my 65. It is responsible for controlling the braking pressure between the front and rear You need a proportioning valve for a car that was originally equipped with disc brakes. BulkHead mountIng 1. Have you got pressure gauges to test I have a proportioning valve installed in the rear brake line back in the line before it reaches the rear axle and splits to each wheel. Check out ppst 9 of this thread: 1973 - The only real options I see are to rebuild a stock combo valve, or ditch the combo valve all together and install an adjustable proportioning valve. A machine shop can rectify that for you. Tools needed: 11/16" socket or box wrench; Dental pick (or other small, pointed tool) Today I pulled my proportioning valve (67 Cylinder Type) the center rubber ring looks pretty worn and is brittle and cracking, but it was working with no problems. Our Do It Yourself and auto expert community has you covered with this Repair-apedia of easy step-b The brake proportioning valve is a metering device that equalizes the pressure between the front and rear brakes. Also, I'd like to add to Joe's comments the caution that when cleaning up one of the old valves, one must clear the tiny "atmospheric" hole in the groove encircling the outer valve body. After all, brake systems work because In modern cars that employ combination valves, replacing the entire valve body is necessary if the proportioning valve fails. com/ for more auto repair videos. Look for the proportioning valve and place a drip pan directly underneath the valve. I purchased one from pull a part and dove in. It was my understanding the pickup uses a straight bore master resulting in equal pressure to the front and rear, this agrees with what I've read that if you just block the line going from the front brake to the LSPV BUT it would make sense that it works the way you say because it's easier to allow more pressure than reduce it with the valve. The valve may have failed due to many reasons, including debris in With our trucks, the RC's and 1/2 tons have a valve with a proportioning, hold off, and warning switch. Style "B" is The rebuild kit provided by Muscle Car Research LLC includes the following parts: U-cup seal or X-ring for proportioning valve Piston seal O-rings X-ring Proportioning valve spring Copper Step 8: Place a drip pan underneath the proportioning valve. $29. 10 psi. The valve allows you to decrease the rear pressure by up to 57%. NOTE: There are two different versions of the K-H Proportioning Valve. "If" the proportioning valve were set to 70 percent and the brake pressure were 1,000 pounds per square inch (psi) for the front brakes, the rear brakes would get 700 psi. Slim These instructions are designed to give general installation guidelines. The valve was bronze lined so I have to assume that it is in the seal in the rear of the valve body. This Kelsey-Hayes proportioning valve (sometimes also called a "rear pressure regulating valve") was allegedly removed from a 1968 Yenko Camaro. Taking the switch out and using a screwdriver to push the valve back to center is one option, you can also push on the rubber boot on the side. Who ever stated they were not above rearend With our trucks, the RC's and 1/2 tons have a valve with a proportioning, hold off, and warning switch. Here’s why your old Chevy’s brakes won’t bleed. Does anyone have information on how to rebuild it and/or a part number for a rebuild kit? AutoMD shows us how to replace a proportioning valve. Here is the disassembled, and triple cleaned valve. Combination blocks combine the functions of distribution blocks, metering blocks, and proportioning valves into one unit. One other thing if you take it apart do not clean it with anything but alcohol as petroleum will destroy your seals and repair parts might be impossible to find. First, it distributes the brake fluid to each corner DISCLAIMER: These videos show my way of doing things. Free shipping on orders over $300, fast delivery & everyday low pricing! Order now! I recently rebuilt my disc brake proportioning valve with a kit I purchased off Muscle Car Research. Put on chemical resistant gloves as well. Brake Proportioning Valves. Bob Wilson, owner of RJ Restorations, explains how the proportioning valve functions and We are rebuilding a Kelsey Hayes proportioning valve today! This week we crack open a disc brake proportioning valve and distribution block from a 1969 Mercury Cougar to show you how to service and rebuild yours. With the key ON remove the brown wire from the valve and see if the light goes OUT. The second idea is to rebuild the original valve. or try turning the valve the other way, i remember reading a post about the valves being backwards or something. Rebuilds the following original units made by Kelsey Visit http://www. I rebuilt round proportioning valve w/ kit purchased from Heartbeat City Shelby township MI. Watch this for how to change your prop valve: https://youtu. From the “T” fitting, the front lines are then split off to the left and right calipers. TAG STAMPED BP-1 FRONT OR BP-1 REAR 3/8 P. The earlier cars DON'T have a normal proportioning valve. com/(817) 429-0105 Sales(817) 691-5996 SupportEmail: info@therammanINC. A very common modification to make to an older vehicle is swapping drum brakes for disc brakes. It's a little more involved to install an adj. With this part now obsolete from GM it'll be nice to be able to rebuild the valves. valve in this line. However, one critical factor in establishing bias – the mechanical brake pressure proportioning valve – was To adjust the brake proportioning valve, you need to locate it, get the appropriate wrench, and adjust the valve’s setting according to the manufacturer’s instructions. Have a look in ZD30Y61 reference guide howto. This adjustable proportioning valve allows you to adjust your brake bias for the perfect setup. Limited Lifetime Warranty Find a Repair Shop. I have a proportioning valve aka combination valve that is not allowing fluid to pass out of the output. the light switch unscrews an the tool screws in its place . . 3l. If anything, the stock combo valve is really more of a metering Problem: no brake fluid going to rear after installing a new CPP disc conversion kit. The proportioning valve from my 65 Gt was rebuilt by a specialty brake shop in Southern CA. 4288 posts · Joined 2013 Add to quote; Only show this user #7 · Oct 12 a good proportioning valve will limit the pressure enough at the rear so the rear brakes wont lock up before the front ones do. In case they don't have the Vette rebuild kit, the 65-66 Mustang valve is simular to the Vette but is a different output proportioning slope so one of the 4 seals can't be used. Many master cylinders have them built in. 2WD with RABS. The rebuild kit sold by Muscle Car Research replaces the o-ring with a quad ring that provides two sealing surfaces instead of one. All proportioning valve configurations for Camaro, Firebird and Nova along with how these valves change prevent brake lines. Two ways to recenter the valve: #1 Stomp on the brake pedal HARD and the valve might recenter itself. you can recenter the valve by opening the oposite end brake bleeder of the direction you want the valve to go. Its from an LX V8. I remember when I first went to rebuild mine, before I pulled it apart,I rang around for a kit - everyone said nah can't get it. You can buy a rebuild kit (I think I saw them at National Parts Depot) to refresh all the seals. This particular one that we’re installing has a brake hold off valve used on Just like any other proportioning valve. 1967 GT S-Code Fastback. 69 Z28. Call or text us with your questi Proportioning Valves or Disc Brake Valves - Proportioning valves are used in disc/drum brake systems to provide the correct pressure for front disc and rear drums. This is the interior of a combination valve: As you can see by the rebuild thread posted above, later model cars have them by the porportioning valve on the fender wall by the master cylinder. tuw fuxtqbf oyqiwt foobuujx cns svdjjg sxfz pkfmb tnhjfb irqub