Brake issues/problems... any advice, help... [Archive] - Chevelle Tech

: Brake issues/problems... any advice, help...


1966_L78
Jul 7th, 06, 7:00 PM
I installed my new front brakes, and everything went pretty smoothly, except one issue that started with the old brakes...

The last time I drove the car with the "old" brakes, the drivers-rear locked up prematurely... I determined that this was most likely a bad wheel cylinder on the passenger rear...

I replaced the wheel cylinder, and BEFORE bleeding the rears, I pumped the pedal...

The pedal went all the way down... at first it made sense, because the new rear cylinder was empty...

BUT then I remembered that the front system is separate from the rear (NO "combination" or metering block, just an adjustible Proportioning valve in the rear supply line...)...

I had previous bled the front brakes when I installed the new brakes, and am now wondering what is happening...

The master is a 67-76 Corvette master, and I was wondering if there was some sort of internal bypass or other way for pressure to bypass the fronts...


After bleeding the rear, the pedal is very stiff, but I haven't test drove it to see IF the front brakes are working properly...

Any suggestions?

71350SS
Jul 8th, 06, 1:39 AM
Sounds normal, if you introduce air into the system anywhere (replacing the wheel cyl)the pedal will drop.There is no way on a split system for air to go from the rears to the fronts,if thats what your asking.