Front brakes hanging up

[edwhite7]

If I understand it correctly the residual pressure valve is designed to hold about 2 bs in the line on cars that have the master cylinder below the wheel cylinders. If this is not the case then they can be removed but even so they should not be a problem unless thery have failed. I had residual pressure valves in my car and I removed them. I did not notice any change but my master cylinder is above the wheel cylinders. It sounds like the pedal free play is not the issue, I suspect the master cylinder but only cause it can't be much else.

[strictlypersonl]

Originally Posted by edwhite7

If I understand it correctly the residual pressure valve is designed to hold about 2 bs in the line on cars that have the master cylinder below the wheel cylinders. If this is not the case then they can be removed but even so they should not be a problem unless thery have failed. I had residual pressure valves in my car and I removed them. I did not notice any change but my master cylinder is above the wheel cylinders. It sounds like the pedal free play is not the issue, I suspect the master cylinder but only cause it can't be much else.

The RPV's built into the early ERA master cylinders maintained about 10 psi because the master was originally intended for a drum brake system.

Which is why it must be disabled.

[d_ford]

Chas,
Thank you for the compliment on the car. If I drop the front end any lower, the oil cooler scoop will pick gravel up off the road! My old ERA #002 wasn't nearly as low as this car is, I have a hard time getting a jack under it.

Bob,
The RPV you are referring to is the modification you talked about earlier inside the master correct?