Join Date: Jul 2000
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CJ7 Brake Problem
I'm having some problems with the brakes on my CJ7. It is a 78 CJ7 304/TH400/Qtrac with the stock power braking system and 11" rear drums.
The problem is after driving the jeep for a short while (<2 miles) both the front calipers will not release. The entire brake system is new except for the master cylinder, vacuum booster, and proportioning valve.
After the fist incident I suspected the calipers had locked up because I could not move the piston back into its bore. The calipers, rotors, and pads were replaced under warrenty. This fixed the problem while I took it for a test drive but when I drove it again yesterday the problem came back.
When installing the calipers it seemed to me like there is just too much distance the piston much travel before it even reaches the pad, about 1.5". Is this normal for this setup?
Also, anyone have any other ideas as to what could be causing the problem? I've run out of ideas.