Trouble bleeding, no pedal - new disc conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Asshat · 10-13-2021, 04:06 PM

Just did the disc brake conversion and installed the new calipers and a proportioning valve (PV71).

No air bubbles anywhere, just cannot get pedal. If I pump a couple times I can feel it.

Checked for leaks all around and nothing.

Any ideas?

Master cyinder is pretty new - probably a cuple hundred miles on it, if that.
Anything special about that proportioning valve? It has an electrical connection, but that's ot required for braking, is it?

10-13-2021, 04:06 PM	#1
Asshat Registered User Join Date: Jul 2015 Location: South Orange County CA Posts: 1,265	Trouble bleeding, no pedal - new disc conversion Just did the disc brake conversion and installed the new calipers and a proportioning valve (PV71). No air bubbles anywhere, just cannot get pedal. If I pump a couple times I can feel it. Checked for leaks all around and nothing. Any ideas? Master cyinder is pretty new - probably a cuple hundred miles on it, if that. Anything special about that proportioning valve? It has an electrical connection, but that's ot required for braking, is it? __________________ 1963 C20, small window, long bed 292, 4-speed



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