Board logo

grease for brake guide pins?
aka Keith - 24/3/10 at 07:27 PM

I got my reconditioned caliper back from Bigg Red. have to say fantastic service from them.

Anyway, I am looking to put them back together and I was wondering about the grease in the guidepins?

I have some high melting point lithium grease in the garage, can I use this, or do I have to use a specific grease?

blakep82 - 24/3/10 at 07:30 PM

erm, you don't really want grease on your brake pads...
you can put copper grease on the back of the pad i think, only a tiny smear, peraps the same on the pin.

britishtrident - 24/3/10 at 07:32 PM

If it is floating Sierra calipers either "Red Rubber Grease" or silicone grease. Anything else will cause the rubber water seals to swell harden and rot.on the guide pins.

For Cortina style calipers you don't really want to greaee them just a tiny ammount of Copaslip to make 100% sure the pads move freely in the calipers

[Edited on 24/3/10 by britishtrident]

aka Keith - 24/3/10 at 07:38 PM

Cheers britishtrident, it is the floating sierra calipers, so it is of to the factor tomorrow to get tomorrow to get some "red rubber" or silicone grease in the morning.

Cheers
Craig

PS secondary question: the piston notches are not at 12 and 6 so as to receive the pads, how do I turn the piston to fit?

blakep82 - 24/3/10 at 07:41 PM

angle grinder keys usually fit apparently

aka Keith - 24/3/10 at 07:44 PM

I know it is a sin, but I do not have an angle grinder.

Any other options?

Cheers
Craig

Paul TigerB6 - 24/3/10 at 07:48 PM

I struggled to find red rubber grease locally and ended up buying a tube from Ebay for £2.50 or so.

link

adithorp - 24/3/10 at 08:42 PM

quote:
Originally posted by aka Keith
I know it is a sin, but I do not have an angle grinder.

Any other options?

Cheers
Craig


They can be turned with grips on the edge of the piston if you're carefull (mind the rubber) 90'bend longnose pliers also works.

Sliders should be rubber grease or silicone grease. Don't over do it; Only needs a smear.

As said lots of times before, DON'T operate the handbrake untill you've pumped the foot braketo bring the pistons out.

adrian

aka Keith - 24/3/10 at 08:50 PM

Cheers adithorp,

many thanks for the hints.

Cheers
Craig