[englishted]

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One of my mates has a sticking front calliper on his Wing. You can't push the bike as the brakes seizes on, so we are going to take off the calliper to strip and clean it.
My question is; when we get the pistons all cleaned up, can I use copper grease on the pistons to stop corrosion coming back, or will the grease cause problems in the brake fluid?

 

[Renegade]

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Haven't heard of copper grease being used on brakes... May I suggest looking more closely at the mount bolts & sliders where the caliper bolts to the fork. If the slider bolts are seizing, the caliper will not release the applied pressure and cause the binding action you spoke of... This may save you a caliper overhaul...

Clean the slider bolts, mount points and holes thoroughly. Apply what we call "white grease" also known as "brake grease" to the parts. Be sure to keep the grease away from the pads & rotors, and apply it sparingly. Inspect the rubber seals for deterioration, cracks or tears and replace them if needed. Re-install the calipers and if they still bind up, then go for an overhaul... I've never used any type of grease when overhauling calipers, just brake fluid (dot 4).

 

[Goldwinger1984]

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You should never use any petroleum based lubricants on brake system internals. The petroleum base causes swelling and softening of the brakes rubber components.

There are special silicone based lubricants that can be used for brakes.

Vic

 

[corneo]

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Just to back what Renegade and GWsaid my brake freeze was because the brake peddle didn't come all the way up. (to release the fluid) OnceI cleaned it, all was fine.

 

[Renegade]

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Thanks for the input Corneo... We need feed back on issues regardless of the outcome. :clapper: