Old Brake Hardware

[Slimchuckles]

Any of you guys ever resurface a brake piston? The cylinder is in good shape but the piston has some deep pitting that a polish won’t quite solve. Is there a metal filler compatible with brake fluid? Thanks.

[hillsy]

Any of you guys ever resurface a brake piston? The cylinder is in good shape but the piston has some deep pitting that a polish won’t quite solve. Is there a metal filler compatible with brake fluid? Thanks.

I've heard of people filling pitting on fork stanchions with epoxy, but I think that's only because new forks are quite costly.

Could be worth a try though.

But it's really not that expensive to get either a new or another caliper piston.

[Lechy]

Brakes are life saving equipment, you really do not want to compromise them for the sake if a few bucks.
Your life, do with it as you please.

[emoji41]

[tarza]

70 % of your braking comes from the disc in front. Just bite the bullet and get a new one. Funeral‘s cost around $10000.

[Herb]

70 % of your braking comes from the disc in front. Just bite the bullet and get a new one. Funeral‘s cost around $10000.

Yeah, but someone else has to pay it...

If the seal area is good the piston can have some pitting as long as it doesn't make it too small for the bore. I would never try to fill in pits because the filler could come loose and screw it up.