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Wheel cylinder tricks, reality check 120-130

posted by  lars young on  Wed Mar 6 17:37 CST 2013
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last visit: Thu Apr 24 16:59 CST 2014
[RELATED]

I find my rear brake wheel cylinders do not last forever on my 122S wagon (really 220S.) I get about 15 years from them. On my other cars, ranging from old Alfas with drum brakes to a Pinto, the wheel cylinders do not fail.

They fail two ways on my Volvo. Either the piston rusts to the cylinder, or the cup fails. I believe water getting past the intact rubber seals and rusting the cylinder is the common root cause.

Last weekend I tried to solve this by packing disc brake assembly grease into the proper area of my new cylinder.

I never heard of others doing this.

Was it a bone head move for some reason I never thought of?
Am I just the last to hear of this and everyone else does it?
Is wheel cylinder failure not a big 122S problem, and I am the only one afflicted?

Cheers,
Larry - Pasadena





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