Good point, JB. Some residual pressure valves are built into the master cylinders and some are in-line. If you have the wrong valve for the application, it certainly will cause drag. I arbitrarily remove them. A marginally misadjusted MC brake activation rod from the pedal will also do it: if the MC piston is adjusted too far forward, the return port in the MC is blocked and every time you hit the brakes, pressure will increase a little until the rotor stops turning. This can also happen with system heat expanding things. Is the problem both front & rear brakes or just on one end?
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.