"Hy Chad M, if the master cylinder is mounted below the level of the disc brake calipers, then 2 p.s.i. residual pressure valves are recommended to prevent backflow to the master cylinder from the calipers."
3B,
I recently converted the otherwise original brake system on my '36 Chevy pickup to a tandem master cylinder. The OEM '36 master cylinder has a 15 psi residual pressure valve in it even though the master cylinder is above the level of the wheel cylinders. The factory would not have done that if it were not required. In doing my tandem conversion I put a 10 psi Wilwood residual pressure valve in both the front and rear brake circuits to try to approximate what the factory did in 1936.
Based on what I found in my '36, I would say that Chad needs a 2 psi valve in the front circuit in addition to whatever else his problem is.
Last edited by yar; 06/11/2017 1:10 AM.
