29-10-17, 02:24 PM
For stuck caliper pistons I use duck oil and a G clamp.
Give it a good clean with duck oil and a rag then gently and slowly clamp back into place, remove clamp and pump piston or about 75% and repeat until smooth and free.
When happy push the piston in and clean with brake cleaner. Finally apply a smear of red rubber grease to the piston.
I have specified duck oil for this as it is safe for use on the seals. Do not use wd40 it will destroy them.
Give it a good clean with duck oil and a rag then gently and slowly clamp back into place, remove clamp and pump piston or about 75% and repeat until smooth and free.
When happy push the piston in and clean with brake cleaner. Finally apply a smear of red rubber grease to the piston.
I have specified duck oil for this as it is safe for use on the seals. Do not use wd40 it will destroy them.
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