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12 years ago in CHEVROLET
I have a 66 Impala 327-4 with power breaks. I had a minor leak in the break master cylinder and replaced it with a new one from Autozone. I immediately developed a problem with the rear break shoes dragging to the point that the drums are hot to the touch. I made no other adjustments to the breaks. I adjusted the master cylinder all the way out and still had the rear breaks dragging. Just for grins I put the old master cylinder back on and the problem went away. Someone told me that I should buy a rebuilt master cylinder instead of a new one to get one that was actually functioning on a car. Has anyone else had this issue?
Answers (2)
12 years ago
Did you bleed the brakes after changing the master cylinder. If not do so . Start with the wheel ,farthest away from the master cylinder, usually left rear, then right rear , right front then left front. You do not mention , having adjusting the brakes at the drums. I am not sure about 1966 , but all previous years chevys , you could adjust each indidual wheel drag at the drum Good luck I
12 years ago
Did you bleed the brake lines of air after you installed the NEW master cylinder? If the new master cylinder from AutoZone worked, just left you with tighter brakes in the rear, then bleeding the brake lines may fix the problem. You can get a self-bleeder which will allow to bleed the brakes by yourself or you can have a friend help