'69 Camaro brake caliper problems and questions

[copo69]

I have some ordered from GM....maybe I'll get lucky and get some from the bottom of the bin. Do the rebuilders resurface the seat on the calipers? If not could have the same problem with new rebuilds. I know the new washers are a diffferent color than the old ones and appear harder. Maybe a different alloy? I've considered doubling the washers.

[Mr. Chevy]

I believe the rebuilds are re-surfaced. I know people that have used them and had no problems...

Rich

[budnate]

doubling wont work, two smooth surfaces will leak for sure, tried it in desperation also, even knowing better, the thing I noticed is the small ridges on the caliper that are supposed to cut a small groove into the washer and make the seal was very faint/pitted on my rebuilt calipers, they did not appear to be resurfaced at all, that's when I finally gave up and assumed they were junk,

I agree the new thin washers cant be helping much and I also started thinking after the car left I was wondering if the bolt was bottoming out a little and not providing a good crush? do to thin washers,

maybe spin your bolt in and make sure it threads in plenty deep for good crush?.

B.

[copo69]

Yeah, checked for bottoming. Seat has a small nick in it but sealed 12 years ago. I knew doubling wasn't a good idea. Hopefully if GM washers are spec they'll be a little thicker.

[cib12]

go knock around a junk yard and find some old washers-

[m22mike]

If you guys are going to use old washers, you can aneal them by heating cherry red and letting them cool at room temp.
Old time aircraft mech trick for re using solid spark plug washers.
Never tried it myself, maybe worth a try.

Mike

[NCGuy68]

[ QUOTE ]
If you guys are going to use old washers, you can aneal them by heating cherry red and letting them cool at room temp.

[/ QUOTE ]

Mike beat me to it, I was going to suggest the very same thing. This method will make them more ductile (softer) and slightly expand them. In metallurgy its called recrystallization. For sure worth a shot.