What valve controls pressure to the front brakes?
Metering Valve
Metering Valve: The Metering Valve, sometimes referred to as a Hold-Off Valve, is used to regulate the pressure going to the front wheels when the brakes are initially pressed in a brake system using disc brakes in the front and drum brakes in the rear.
How does a proportioning valve work on a car?
With a proportioning valve you can reduce the brake pressure going to the front brakes so that the front brakes lock up just before the rears. You just insert the valve into the front brake line and then dial down the pressure. Summit Racing (800-230-3030) and Jeg’s sells several proportioning valves.
Where is the proportioning valve on the front brake line?
There’s more room there for the valve. To identify the front brake line at the ABS follow the front line from the master cylinder over to where it connects to the ABS box. Fritz McKeller’s proportioning valve installed on front brake line at the master cylinder. He had a new short (silver) line fabricated (note the gentle bend).
How do you get a proportioning valve unstuck?
Apply the emergency brake and lift the hood. Unscrew, or unsnap the master cylinder cap and fill the master cylinder with brake fluid to the top limit line. Leave the cap off. Use a floor jack to raise the vehicle at the front end and place two jack stands under the frame near each wheel.
Is there a way to reduce brake pressure?
You just insert the valve into the front brake line and then dial down the pressure. Summit Racing (800-230-3030) and Jeg’s sells several proportioning valves. The Wilwood unit that I used was $39.95 and will reduce braking pressure up to 57%. A brake pressure gauge will install the same way as a proportioning valve.
Why does the proportioning valve only work on rear brakes?
Vehicles with drum brakes in the rear have much lower pressure for the drum brakes than the front disc brakes. This is why the proportioning valve only lets a particular amount of pressure through to the rear brakes. If you suspect there is an issue with your proportioning valve, check for the following symptom:
How do you get a proportioning valve to work?
Bleed the rear brake line again at the proportioning valve, as you did before if you still have a brake dash light. Bleed the front brake lines on the proportioning valve in the same fashion. This reversal of pressure will eventually break the spool loose inside the proportioning valve, equalizing the pressure between the front and rear brakes.
What is the proportioning valve on a Wilwood disc brake?
The rear circuit has a single inlet and single outlet with the adjustable proportioning valve. The front circuit has a single inlet with two outlets. It can be run as a single outlet with one outlet plugged, or used to split the plumbing on its way to the front calipers. Proportioning Valve, Knob Style, 10mm x 1.00 seats.
Apply the emergency brake and lift the hood. Unscrew, or unsnap the master cylinder cap and fill the master cylinder with brake fluid to the top limit line. Leave the cap off. Use a floor jack to raise the vehicle at the front end and place two jack stands under the frame near each wheel.