Thread: New power front disc brakes 67 GTO

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you could check for free play in the brake push rod there must be free play if not this could hold the brakes and could get bad when heat get in the system from use it would hold the front brakes

Thanks all. I'll check this stuff out. The hoses are new.

Denny, now that you mention it, the calipers are "free" but the rods that run thru the inner caliper to the outer caliper run thru holes that have an o-ring in them and as I recall and it does take a decent amount of pressure to move the calipers in relationship to each other. Not sure how to remedy that.

Dave, I don't know what you mean by the centered position of the combination valve. I just mounted it and connected the lines. The brakes do seem to stop the car properly...

Pat, "you could check for free play in the brake push rod there must be free play if not this could hold the brakes and could get bad when heat get in the system from use it would hold the front brakes"

What do you mean by the brake push rod? Is this the rod between the booster and the MC? If so I thought that the shimming of the MC would help this but it did'nt. How would I check for free play? With the shims in, I do have to press farther to get the brakes to apply.
By the way, nice 66.

Thanks to all. Doug

It could be that the brake cylinder piston is not springing back immediately.

Am I supposed to lubricate the caliper mounting bolts that the calipers glide on?

Once I wait a few seconds after remove my foot from the brake pedal, the brakes will release.

The fluid volume needed to compress the pads is SLOWLY being pulled back into the master cylinder.

The pedal is returning back into the up position quickly and fully

But if you hit it again quickly - before the brakes release - what does it feel like?

I had time tonight to check one thing. I pulled the attachment/glide pins and cleaned then and lubricated the pins. Some of them had some anti squeak stuff on the pins that got in the holes. Cleaning them and lubricating them made a big difference in the way the pins felt sliding back in. After this I took the car out around the block and...no difference.
As soon as I get some help, I'll check the hoses by opening the bleed screw when someone applies/releases the brakes.
Thanks for the help guys.