BREAKS NOT ENGAGING AFTER NEW PARTS INSTALATION

1973 Chevrolet Nova

Tiny

novajoe

June, 11, 2012 AT 6:41 AM

I just installed a new proportion valve and calipers to stop my disk breaks from locking up, only now they don't engage or only slightly engage. How do I fix that?

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3 Answers

Tiny

caradiodoc

June, 11, 2012 AT 7:20 AM

How is the brake pedal, high and firm or low and mushy? By locking up, do you mean skidding the tires under light pedal application or the brakes would start to apply themselves while driving?

Tiny

novajoe

June, 11, 2012 AT 3:35 PM

Pedal is low and mushy. And once the pedal was pressed, the one would not disengage.

Tiny

caradiodoc

June, 11, 2012 AT 9:29 PM

Given the multiple symptoms and series of events, is it possible the brake fluid has been contaminated with a petroleum product? Check the rubber bladder seal under the reservoir cap to see if it's blown up and mushy. If it is, everything with rubber parts that contact the fluid must be replaced and the steel lines must be flushed and dried.

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