The Stovebolt Site Forums The Shop Area General Truck Talk Front brakes are sticking!

I have a nova (disk brakes)front clip on my 55. When I put the brakes on they dont seam to release all the way. If fact you cant even turn the roter by hand. What do you guys think the problem could be.

My first quess is that the caliper is corroaded on the outside and dont retract when the pressure is released. My second would be that the slides(where the bolts go though) might be doing the same thing. Take it aparts and see if you got any rust in those areas.

I agree with Jeff, most likely a rusty caliper but the mounting bolts might make it sieze.
It is the piston in the caliper that freezes

I'm no brake expert, but could this have something to do with a residual pressure valve? The valves are sometimes inside the master cylinder and sometimes external. The normal pressure valve is 2 psi for disks and 10 psi for drums. I'm not sure if the wrong one would cause this condition or not. Probably not, now that I think about it. 10 psi doesn't amount to much. Just thinking out loud and trying to consider other causes. The posts above make more sense and would be the first thing I would check.

I took that caliper off the truck. I then used my compressor to push the piston out. I used a brake tool to push the piston back. Could it hurt anything to completly push the piston out cause I did. I was able to push it back in the caliper which was not easy. I will take the brakes off over the weekend and try again!

Years ago on my 75 Camaro, I had the booster and master cylinder replaced by the dealership in town. I picked it up after, drove the 1/2 mile home and you could smell the glue on the front pads. The front discs were not releasing. I took it back and it was an incorrectly adjusted master cylinder linkage that was the problem. The rear drum brakes were not affected by this incident.

The truck was sitting for 9 yrs so I am working out all the kinks. This is one of the kinks!
I may just purchase some new calipers they are not that expensive. Another kink is that the P/O moved the brake booster under that cab but welded a piece of metal over the only place where you could of added fluid to the reservoir. I have about 3/4 of an inch between the reservoir and the floor board of the truck.

It may be your front brake hoses. They swell up inside & the fluid cannot flow back.