Bleed the brake system thoroughly 5. This end of the valve houses the proportioning valve. I see there is a tool that is offered to prevent the valve from opening when bleeding. gsxrken, that is not a proportioning valve in that picture. It is a residual pressure valve. I fabbed my own clamp tools. by A-Team Performance. Buy a 1988 Chevrolet S10 Brake Proportioning Valve at discount prices. im looking into converting my rear drum brakes to discs and i was looking at a kit to do this and it says proportioning valve adjustment necessary. By continuing to use this website, you consent to the use of cookies. Use of this tool prevents the inconvenience of accidentally tripping your proportioning valve during the brake bleeding process. instructions provided with the new master cylinder. Whether you're maintaining your Shark Corvette or completing a full restoration, our selection of C3 Corvette Brake parts is unsurpassed. I played hell with a proportioning valve on a ot car a couple of years ago. To install tool, slide notched side of tool onto boss that. SSBC Black Adjustable Brake Proportioning Valve. A Proportioning Valve is installed in the rear brake line and allows you to adjust the rate of pressure rise to the back brakes. Remember, you are creating a fluid lose in on of the brake circuits, and one of the proportioning valve's job is to prevent fluid lose by closing off that circuit. The adjustable proportioning valve is used to set rear brake pressure to reduce rear wheel lockup on front wheel drive vehicles. You benefit by having a brake proportioning valve in your brake system because it helps you control brake balance. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. This end of the valve houses the proportioning valve. Easy to use parts catalog. ABS Brake Proportioning Valve Depressor The proportioning valve depressor works on various GM utility vehicles, vans, and pickups fitted with Kelsey Hayes anti-lock brake systems. once brakes are bled remove the tool and replace the light. Browse CJ Pony Parts large selection of performance and classic Mustang brakes that are available in a wide range of years. It’s important to remember the existence of this valve, if you ever have to bleed the braking system on your vehicle. Use of this tool prevents the inconvenience of accidentally tripping your proportioning valve during the brake bleeding process. I don't have a proportioning valve on my system, just a 10psi residual pressure vavle for the rears and my brakes work like a champ. Universal GM Brass Disc Drum Proportioning Valve Brass Disc Drum Combination Valve / Proportioning Valve Exact Copy of Original; FREE BLEEDER TOOL! Tool helps bleed your prop valve correctly! Part is in stock, we do not drop ship; We Ship Fast! In Most cases within the next day!! Instructions are available or can be review on photo # 5 of our. Air and Fuel. Hi everyone, my vito has been left standing for a while and now all the breaking is happening on the rear wheels. The valve allows you to adjust the rear line pressure from 43% to 100% of the front. I played hell with a proportioning valve on a ot car a couple of years ago. tuning, you can install an adjustable brake proportioning valve to adjust the pressure from supplied to rear brakes. After disconnecting the lines, remove the old proportioning valve. dealership will tend to use pressure bleeding equipment. ADJUSTABLE PROPORTIONING VALVE INSTRUCTIONS IN = Line from Master Cylinder OUT = Line going to rear brakes 1. A-Team Performance Brake Proportioning Valve Bleeder Tool for DISC/DISC & DISC/DRUM PV2 & PV4. SPEED BLEEDERS One Person System Takes The Work Out of Brake BleedingBleeding your brake or clutch line has never been easier or simpler! Revolutionary double-patented Speed Bleeder replaces the original bleeder valve in your caliper/wheel cylinder with a spring-loaded one-way ball and check valve design. To gauge the fluid level, make sure that all the tires are level by setting the vehicle up on a jack. 89 at TrueGether. This valve helps them to lock up right before the rear brakes do which is essential in proper and safe braking systems. Buy online, pick up in-store in 30 minutes. Provide 10psi residual pressure in the brake lines. Alvin in AZ. Shop for the latest products on gm-proportioning-valve-bleed-tool from thousands of stores at PopScreen. In most of our kits, the metering valve is a part of the combination/prop valve. I see there is a tool that is offered to prevent the valve from opening when bleeding. I did not install the proportioning valve. The isolation dump valve is below it (to be removed). You need to hold the stem out (or in) while you bleed the back brakes under pressure. There is no mechanical proportioning valve in the brake system. Last Updated on Mon, 12 Aug 2019 | Toyota Land Cruiser Fj4. KMS Tools & Equipment Wilwood Tandem Master Cylinder Proportioning Valve and Bracket [260-13190] - Specifically designed to work in conjunction with Wilwood Aluminum Tandem Master Cylinders, in manual or boosted system applications. Long lasting zinc-coating. It does not allow any pressure to the disc brakes until a pre-determined pressure has been reached. gm proportioning valve brake lines mounting bracket disc/drum chrome. The design of some proportioning valves allows two things - more chance for failure and an easy way to diagnose them. Body Fillers & Putties. Trying to bleed brakes, but getting no fluid out of the brake bleeder valves. put some grease around the bleeder valve, open and pull out the fluid. Order Bleeder Tools for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. When the master cylinder line (inlet) pressure is above 650 PSI, the caliper line (outlet) pressure is below. GM Original Equipment™ Brake Proportioning Valve by ACDelco®. Buy online, pick up in-store in 30 minutes. the switch on the proportioning valve is a brake warning switch. This item makes bleeding your brake system much easier. Alvin in AZ. The proportioning valve should bleed by itself with the rest of the system. We can help you find the right brake proportioning valve to get your vehicle safely back on the road. The valve is no longer up to snatch if the bleeder screws don't have equal pressure. Proportioning Valve Bleed Tool is designed to replace the warning light switch (white plug) on the proportioning valve during the brake bleeding process. Battery/Electrical Systems. There are many ways to bleed your 1967-1982 Corvette’s brake system, today we are going to show you how to properly bench bleed a master cylinder and gravity bleed the entire brake system. 1995 Chevy Astro van brake bleed w/portioning valve Johnathan Dale Jr DIY Brake Bleeder tool - Brake flush Master Power Brakes Combination Valve Video - Duration: 3:52. •Proportioning Valves The function of the proportioning valve is to limit pressure to the rear brakes relative to pedal force, especially when high pressure is required to apply the front disc. Do you need special tools for Brake rotor replacement on a 1990 f250 4X4? In order to bleed. This tool is designed to make bleeding your brake system much easier. Bleeding brakes with proportioning valve keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. We stock GM proportioning valves for a wide variety of makes, models, and years. "If the combination valve shows no resistance, it has shut off one of the hydraulic systems, in your case, probably the rears. Before an unsafe braking situation occurs, shop O'Reilly Auto Parts. Turn valve to full decrease, counting the number of turns. Shop with us at wholesale prices and get free shipping over $50. Be sure to tighten the bolt after removing the tool. A Proportioning Valve is installed in the rear brake line and allows you to adjust the rate of pressure rise to the back brakes. Tighten bleeder valve when air is no longer present in tube. The nub at the end of the tool prevents the pressure differential switch in the prop valve from tripping when you bleed the brakes. I see there is a tool that is offered to prevent the valve from opening when bleeding. Performance Online's new Combination and Proportioning Valve Bleed Tool is designed to replace the warning light switch (white plug) on the proportioning valve during the brake bleeding process. If your rear brakes are sensitive or locking up, especially on wet surfaces, you need to replace your proportioning valve. com and toolsource. This proportioning valve is a direct replacement for the original 76-77 proportioning valve with proper fitting sizes. Damn!!! Reading this got me thinking I just need to plumb in the wilwood proportioning valve on the 66 and I can bleed the brakes over the weekend. My question is how do you test a proportioning valve. Rather than rebuild the existing valve, I obtained another from a parts car and worked on that, then simply replaced the original when the new lines were installed. but I find the 60 is easier to pull. For surfers:. In most of our kits, the metering valve is a part of the combination/prop valve. No air bags, nor anti-lock brakes here~ simple as brakes can get! Isn’t that a pretty site! It’s just a downright shame to put a body on this frame! 😉. The adjustable proportioning valve is used to set rear brake pressure to reduce rear wheel lockup on front wheel drive vehicles. You''l want to bleed the rear first, then RABS, then the front. A with explicit instructions on how to bleed power steering systems on most of its vehicles. H-Block/Prop Valve Brake Warning Switch Adjustment The stock Early Bronco was equipped with a Brake Warning Light on the dash which is used to indicate when there is a loss of brake fluid pressure to the front or rear brake system. NZ's distributor of Hoosier tires, Cardwells Racing is your one stop shop for racing supplies. gm proportioning valve brake lines mounting bracket disc/drum chrome. Brake Master Cylinder, F-150, F-250, F-350 and Bronco. Pressure adjustments range from 100-1000 PSI and provide for a maximum decrease of 57% in line pressure, the most of any available valve. Proportioning valves can be tested by installing a pair of hydraulic gauges (one on each side of the valve) to see if the valve reduces pressure as it should. Plug must be open to fully bleed upper and lower sections of front antilock valve. Also didn't know they sell a tool to recenter valve and hold in place. You could also google Chevy C-10 brake proportioning valve 1991. Perfect for disc brake conversions. With an adjustable proportioning valve, you can slow down the pressure rise that occurs when you apply the brakes. Screw the PV-TOOL proportioning valve lock into the sensor switch hole on the proportioning valve (Figure 2). Brakes Proportioning ValvesJamco Suspension, Hot Rod Parts Suspension and Brakes! Proportioning Valves. The proportioning valves are labeled as "C" in Figures 47. Getting the hard brake line off your vehicle can be one of the most annoying tasks in all of auto repair. you can get a 120cc. Once you get the plunger centered the brake warning light should go off and you can finish bleeding. Tools and Garage. Install a piece of clear plastic tubing over the brake bleeder screw and place the other end into a container with 2 to 3 inches of brake fluid. Under braking, most vehicles transfer more weight to the front wheels. Remember, you are creating a fluid lose in on of the brake circuits, and one of the proportioning valve's job is to prevent fluid lose by closing off that circuit. A-Team Performance Proportioning Valve Bleeder Tool for DISC/DISC DISC/DRUM PV2 PV4 A-Team Performance parts are sold exclusively by Southwest Performance Parts. I don't have a proportioning valve on my system, just a 10psi residual pressure vavle for the rears and my brakes work like a champ. Bleeding brakes with proportioning valve keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Car Brake Bleeding Kits. For surfers:. This combination valve combines the distribution block and the proportioning valve into one unit. you simply remove the warning light switch (white plug) on the valve, then screw in this tool while bleeding your brakes. slowly press the pedal with steady pressure a number of times until the light goes out; this will center the differential valve. It is a residual pressure valve. Do not let the master cyl go dry while bleeding or you will have to start over. Auto parts stores have a tool designed to force the valve to the center position for bleeding purposes. Vehicles with diagonally-split hydraulic systems have dual proportioning valves, so if a problem is suspected, both valves must be tested. This reversal of pressure will eventually break the spool loose inside the proportioning valve, equalizing the pressure between the front and rear brakes. New Car Motorcycle Brake Bleeder Clutch Bleeding Hose Tool Kit One Way Valve &Tube. When you are upgrading the brake system on your classic from the stock drum/drum to a disc brake system you will need to install a proportioning valve to make sure the proper amount of brake fluid pressure is going to the front and rear wheels. Gm parts giant is proud to deliver a wide array of genuine discounted parts and accessories to fit your needs at prices lower than wholesale. Brakes Proportioning ValvesJamco Suspension, Hot Rod Parts Suspension and Brakes! Proportioning Valves. At CARiD you can find a complete line of ACDelco products that ensure supreme reliability and top quality and deliver worry-free operation for years to come. After the bleeding process is finished, simply remove the PV tool and reinstall the warning light switch. Could not get the rear brakes to bleed at all, what i didn't know at the time if the valve slips off center and closes the front or rear flow you can't bleed the system. I too had issues with a new re-manned unit, I think I went through 2 of them and said THWT (the hell with that) and bought a new unit instead of re-manned, and I didn't have any issues with the install or bleeding of that Master Cylinder. If you look close on EBay you can get a master cylinder with a new valve for a few bux more. Bleed the brakes. Rather than rebuild the existing valve, I obtained another from a parts car and worked on that, then simply replaced the original when the new lines were installed. This Combination and Proportioning Valve Bleed Tool is designed to simplify the brake bleeding process by eliminating the need to remove the low pressure switch. Servo valves are often used to control powerful hydraulic cylinders with a very small electrical signal. 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. What has happened in your case is when you started bleeding the brakes the valve sensed a failure on the rears and shut off the flow. The proportioning valve is actually a three part unit, containing a metering valve, pressure differential valve and brake pressure warning switch. gm black proportioning prop valve disc / drum & bleed tool similar to 260-11322. Technician B says the best way to test a proportioning valve is with a. Tool Box Tool Box Accessories Brake Proportioning Valve Brake Residual Pressure Valve Bleeder Valve Brake Caliper. Master Cylinder. Heartbeat City stocks a full line of NOS Camaro Parts, Rare Camaro Parts, Old Camaro Parts, Reproduction Camaro Parts and hard to find Used Camaro parts for your first generation 1967, 1968, 1969 camaro. When bleeding the brakes, the pin in the end of the metering portion of the combination valve must be held in the open position (with the tool described in the brake bleeding section installed under the pin mounting bolt). Technician B says the best way to test a proportioning valve is with a. A single point failure in the brake system will result in the total loss of brakes and possible damage/injury/death! A brake shop can install the valve fairly cheaply. Master Power. Proportioning Valve The proportioning valve is designed to prevent rear wheel lockup during panic braking. com and toolsource. This tool is designed to make bleeding your brake system much easier. SPEED BLEEDERS One Person System Takes The Work Out of Brake BleedingBleeding your brake or clutch line has never been easier or simpler! Revolutionary double-patented Speed Bleeder replaces the original bleeder valve in your caliper/wheel cylinder with a spring-loaded one-way ball and check valve design. After bench bleeding the master cylinder, make sure the valve is all the way open allowing full pressure to the rear brakes (clockwise). You could also google Chevy C-10 brake proportioning valve 1991. I see there is a tool that is offered to prevent the valve from opening when bleeding. Battery/Electrical Systems. The proportioning valve regulates the pressure applied to the rear brakes. Position the adapter tool on top of the bleed screw. Use of this tool prevents the inconvenience of accidentally tripping your proportioning valve during the brake bleeding process. Turn the ignition key ON. A specific tool can be used that is typically placed into the valve through the warning light socket and which will allow proper bleeding of the system without valve problems. Get Details. This video gives you an inside look at the combination valve. I have installed the booster and master cylinder from a 2000 S-10 in my 1952 CHEVY. This is a very useful tool for new installations. Attach one end of clear tube over valve and submerge other end in container partially filled with clean brake fluid. Perfect for disc brake conversions. The online catalog we provide will get you through the ordering process safely and securely. You could also google Chevy C-10 brake proportioning valve 1991. The more control that you have of the overall operations of your Ford Mustang, the better. I have read that bleeding this system is a pain. 15 minutes + time to bleed your rear brakes. No air bags, nor anti-lock brakes here~ simple as brakes can get! Isn’t that a pretty site! It’s just a downright shame to put a body on this frame! 😉. com Order Brake Proportioning Valve for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. gm black proportioning prop valve disc / drum & bleed tool similar to 260-11322. If you have a friend/wife you can get them to help by pushing the pedal gently after you have loosened the bleed valves one at a time. I bought a one-person vacume bleed tool that I will try. The proportioning valve determines the percentages of brake fluid directed to the front and rear brakes to ensure safe braking. put some grease around the bleeder valve, open and pull out the fluid. What I have found, the proportioning valve and the combination valve are the same thing. The proportioning valve is actually a three part unit, containing a metering valve, pressure differential valve and brake pressure warning switch. This item makes bleeding your brake system much easier. If I do change out the valve I will put a new valve up near the master cylinder, and redo the brake lines to remove the stock proportioning valve, unless y'all think I can leave it all alone, pull the pin up in the valve, bleed the brakes and go. I order a Proportioning Valve Bleeding Tool to lock the valve in place while bleeding the brakes. The stock brake proportioning valve must be removed or disabled whenever an adjustable proportioning valve is installed. I ended up getting a motive power brake bleeder which is pretty nice 3 of the 4 wheels bleed fine. I'm going nuts, all I want to do is bleed the brakes but this stupid valve is standing in my way. go to the vet's office, get a 60cc syringe. Bleed the front brake lines on the proportioning valve in the same fashion. Brake speed bleeders are perfect for one person bleeding of brakes. Bleed the brakes. If not, you will have to remove it from the combi valve with a paper clip or other suitable tool. This brake line adapter set eliminates any headaches while fitting many of today's different proportioning valves and brake lines to your vehicle's plumbing. (a) Loosen bleed plug on new front valve about 1/4 to one full turn (Fig 24). Performance Online's new Combination and Proportioning Valve Bleed Tool is designed to replace the warning light switch (white plug) on the proportioning valve during the brake bleeding process. 0 LX, GT, and SVT Cobra. Air is trapped in the valve body. These proportioning valves are similar to what GM used on many cars in the 70s. What has happened in your case is when you started bleeding the brakes the valve sensed a failure on the rears and shut off the flow. COMBINATION VALVE / PROPORTIONING VALVE LOCK TOOL. This outlet is equipped with a bleed valve that allows the user to control if the bleed is ON or OFF. Our new Combination and Proportioning Valve Bleed Tool is designed to replace the warning light switch (white plug) on the proportioning valve during the brake bleeding process. If you notice the rear wheels locking up, especially on wet surfaces, your brake proportioning valve may not be working properly, and you may need a replacement. I am flumoxed with bleeding the brakes on my 1979 MGB LE--I got the car a couple weeks ago, pedal was very spongy and low, tried to bleed the brakes a few days ago, bleed screw (actually the rear wheel cylinder) was stripped, couldn't tighten it down to seal good, don't mess with cheap fixes on brakes, so got a new RWC. The proportioning valve depressor works on various GM utility vehicles, vans, and pickups fitted with Kelsey Hayes anti-lock brake systems. I'm bleeding the brakes on the CJ and I have realized that I need to hold the metering valve open on the proportioning valve. On the front of the RABS unit is a large nut. 89 at TrueGether. Combination valves include a metering valve for disc / drum systems and a proportioning valve plus a pressure differential switch. This item makes bleeding your brake system much easier. Find the best selection of proportioning and combination valves at Pep Boys. The proportioning valve is actually a three part unit, containing a metering valve, pressure differential valve and brake pressure warning switch. 1990 GMC 1500 sierra no brakes at rear wheels (1990 GMC 1500 Pickup) replaced bad master cylinder and flushed brake lines, due to really bad brake fluid. If you have a adjustable proportioning valve to rear be sure that it is turned all the way closed putting full pressure to rears. It is a residual pressure valve. Proof that the previous owner had not bled the rears completely. dealership will tend to use pressure bleeding equipment. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. This is why the proportioning valve only lets a particular amount of pressure through to the rear brakes. I have installed the booster and master cylinder from a 2000 S-10 in my 1952 CHEVY. You probably have most of these things laying around the garage; however, we suggest you purchase a new sprayer since any water or dirt left in your old sprayer can contaminate your brake fluid. Use of this tool prevents the inconvenience of accidentally tripping your proportioning valve during the brake bleeding process. If the Metering Valve or Hold-off Valve as it is also called is bad, the vehicle will nose-dive at low speeds with light brake pressure. Your truck should have a proportioning valve. E) Proportioning Valve Adjustment 1) The proportioning valve in the Prop Block will be used to adjust the rear brake pressure of the vehicle. I hate Blazer's ABS bleeding procedure, you are correct about using a factory scan tool (TECH II) to activating the ABS pump motor to bleeding. professional Snap-On scan tools. Adjustable proportioning valve and distribution block with mounting bracket all in one. Shop with us at wholesale prices and get free shipping over $50. Do not bang on the valve!. If you suspect there is an issue with your proportioning valve, check for the following symptom: Rear wheels lock up. A proportioning valve (non-adjustable like the OE or adjustable like those offered from Willwood, Summit, etc) is nothing more than a regulator. The D type and the W type. Valves FAQ. Loosen bleeder valve to purge air from wheel cylinder/caliper. Tighten bleeder valve and slowly release pedal. J-28434, or equivalent, to wheel cylinder/caliper bleeder valve. Adjust brake pressure individually as needed for a variety of driving conditions. I did not install the proportioning valve. I have run the lines directly from the master to the front a. Use of this tool prevents the inconvenience of accidentally tripping your proportioning valve during the brake bleeding process. The proportioning valve modulates the pressure to the rear brakes. You probably have most of these things laying around the garage; however, we suggest you purchase a new sprayer since any water or dirt left in your old sprayer can contaminate your brake fluid. So I have a 93 ext cab 2. This Combination and Proportioning Valve Bleed Tool is designed to replace the warning light switch (white plug) on the proportioning valve during the brake bleeding process. Use your wrench set to hold the new proportioning valve in place. I retained the stock combination valve, but I gutted it to eliminate the proportioning function (I installed an adjustable Wilwood valve downstream of the combo valve to reduce pressure to the rear). ASCO is an innovation leader in pneumatics and motion control. Brake problems? don't overlook the proportioning valve. After the bleeding process is finished, simply remove our PvBT Tool and reinstall the warning light switch. sorry horse sence, rusty is right. You can see the pic there. Bleed the rear brake line again at the proportioning valve, as you did before if you still have a brake dash light. Disassemble the valve as described in our 1996 - 1997 Ford F6SC-2B091-CA Proportioning Valve Autopsy article. However, it is very easy to bleed the unit before it is installed following the steps below. 15 minutes + time to bleed your rear brakes. 1996 Chevrolet Truck Parts - Proportioning Valve. A proportioning valve is a valve that relies on the statics to supply a reduced pressure to an output line. The chilton manual states that I need to use a tool (J-26869) to pull the valve out, but I cannot find this tool ANYWHERE. im looking into converting my rear drum brakes to discs and i was looking at a kit to do this and it says proportioning valve adjustment necessary. She has a 96 Silverado. A small hose to push on the bleed screw and pump fluid. Transfer proportioning valves, switches or other components to the replacement master cylinder (as applicable). Another part number is #13486, I believe this is for the wiring harness ($16. by A-Team Performance. Installing a new Electro-Hydraulic Control Unit (EHCU) or new Brake Pressure Modulator Valve (BPMV). you can get a 120cc. After the bleeding process is finished, simply remove our PvBT Tool and reinstall the warning light switch. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. A male DISS oxygen fitting with check valve that delivers flow when engaged to any controlling device, such as a flowmeter. The chilton manual states that I need to use a tool (J-26869) to pull the valve out, but I cannot find this tool ANYWHERE. This site was designed and produced solely by Pelican Parts. Bleeding the brakes with an adjustable proportioning valve is an easy task, but you will need to follow a few steps to make things go smoothly. Oreillyauto. If you go to Amazon use the link from this site to help support it. If you have ABS you have air bubbles in the ABS system. I get a continuity signal from the terminal connections on the valve to ground only when I let off the brakes. There is a bleeder on the RABS module. After bench bleeding the master cylinder, make sure the valve is all the way open allowing full pressure to the rear brakes (clockwise). The proportioning valve simply limits the hydralic pressure to the rear lines so that the REAR wheels don't lock up. A with explicit instructions on how to bleed power steering systems on most of its vehicles. Look for the "Add to cart" button on each product page - it lets you select a single item to be purchased. com Redirecting. Repeat sequence until all air is removed. YEARONE Classic Car Parts for American Muscle Cars | Barracuda Cuda Challenger Charger Chevelle Road Runner Camaro Super Bee Dart Duster Valiant Firebird GTO Cutlass 442 Mustang Nova GM Truck Skylark GS Monte Carlo El Camino Mopar Chevy. Would love to know where others have purchased theirs. SSBC's light and tidy, knob-type proportioning valves (A0707-1) can be installed almost anywhere in the brake lines. Showing 40 of 6358 results that match your query. However, If you are the owner of an automotive related business we encourage you to apply for a Dealer Account to take advantage of our low prices and top service. The valve allows you to adjust the rear line pressure from 43% to 100% of the front. Screw the knob on the valve all the way in for bleeding purposes. I see there is a tool that is offered to prevent the valve from opening when bleeding. All, I just pulled a proportioning valve out of the junk yard, for my drum-to-disc conversion. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. you simply remove the warning light switch (white plug) on the valve, then screw in this tool while bleeding your brakes. Pressure adjustments range from 100-1000 PSI and provide for a maximum decrease of 57% in line pressure, the most of any available valve. Simply replace the warning light swtich (white plug) with this tool to lock the low pressure shut valve and allow fast, easy brake system bleeding. Shop online or Call 800-544-8778 to order today. With the bleed in the ON position, this outlet delivers accurate oxygen concentrations in the following flows:. This valve is a three-part unit. Locate valve proportioning brakes available to buy right now on the internet. Shade tree mechanics -like me- have never ran into that problem? :) Anyway, I've got the tool and it didn't seem to effect bleeding at all. All genuine Honda Brake Proportioning Valves from us are shipped directly from authorized Honda Dealer. The valve allows you to adjust the rear line pressure from 43% to 100% of the front. Description This proportioning valve tool is extremely useful when installing a new prop valve. This item makes bleeding your brake system much easier. 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. Our new Combination and Proportioning Valve Bleed Tool is designed to replace the warning light switch (white plug) on the proportioning valve during the brake bleeding process. ABS Brake Proportioning Valve Depressor The proportioning valve depressor works on various GM utility vehicles, vans, and pickups fitted with Kelsey Hayes anti-lock brake systems. A proportioning valve (non-adjustable like the OE or adjustable like those offered from Willwood, Summit, etc) is nothing more than a regulator. This video gives you an inside look at the combination valve. Power bleeders and vacuum brake bleeders can also help one person bleed brakes the easy way. Must be rears only since I didn't have any problems with mine. We offer a full selection of genuine Honda Civic Brake Proportioning Valves, engineered specifically to restore factory performance. If you remove this nut, there will be a spring. If you have ABS you have air bubbles in the ABS system. It replaces your warning light switch during brake bleeding process and locks the low pressure shut valve to allow for fast and easy brake bleeding and keep the valve from tripping the shut off mechanism. Additional hard-lines may be needed to reach to the valve, depending on your choice of location. Buy online, pick up in-store in 30 minutes. 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. Buy Brake Proportioning Valve - NMC M552 online from NAPA Auto Parts Stores. It is a residual pressure valve. Instead, the anti-lock brake system (ABS) controls what happens at the brakes. If you suspect there is an issue with your proportioning valve, check for the following symptom: Rear wheels lock up. What has happened in your case is when you started bleeding the brakes the valve sensed a failure on the rears and shut off the flow. Turn valve to full increase. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. The proportioning valve prevents rear wheel lockup during panic braking. Installation. Classic Industries offers a wide selection of Brake Components for your 1996 Chevrolet Truck. The proportioning valve was designed to substantially reduce pressure to the small wheel cylinders. We carry both disc/disc and drum/disc brake proportioning valves for Chevy, GMC, and Buick vehicles. The proportioning valve is located just below the master cylinder and has two lines from the master cylinder running into it. Hold the combi valve body with the adjustable wrench and install the new Stealth Brake Bolt. I don't have a proportioning valve on my system, just a 10psi residual pressure vavle for the rears and my brakes work like a champ. Screw the PV-TOOL proportioning valve lock into the sensor switch hole on the proportioning valve (Figure 2). PROPORTIONING VALVE BLEED Tool, Prop Valve Bleed Tool - $7. When the master cylinder line (inlet) pressure is above 650 PSI, the caliper line (outlet) pressure is below.