nickwilliams Posted April 3, 2010 Share Posted April 3, 2010 Having stripped down the front brake calipers from my 90, it's clear that they are going to need some new seals and in more than one case the chroming on the pistons has rusted through. I notice Paddocks sell replacement pistons in stainless. Has anyone got any thoughts or opinions on whether or not these are a good or a bad thing? I had to use my hydraulic kit to push the pistons out, so I'll now have hydraulic oil mixed in with the brake fluid. Has anyone got any magic cleaning tips or do I just wash them through with Gunk or Jizer, rinse in water and then dry carefully (I have an oven for this) before putting them back together? Any other tips or recommendations for caliper service while we're at it? Nick. Quote Link to comment Share on other sites More sharing options...
zoltan Posted April 3, 2010 Share Posted April 3, 2010 Stainless pistons are better at insulating heat through to the fluid. Provided they are nicely made they will be an improvement. Quote Link to comment Share on other sites More sharing options...
western Posted April 3, 2010 Share Posted April 3, 2010 Stainless steel pistons are much better [don't corrode] wpe the oil off & then wipe with a clean no fluffy rag soaked in brake fluid & then dry, any hyd oil left in the fluid gallery will be flushed out when you bleed the brakes. Quote Link to comment Share on other sites More sharing options...
errol209 Posted April 3, 2010 Share Posted April 3, 2010 Stainless good, OEM chrome steel baaaad. Quote Link to comment Share on other sites More sharing options...
jbs Posted April 3, 2010 Share Posted April 3, 2010 I've got stainless pistons fitted all the way round on my 90 and in the last 4 years I've not had any corrosion and no problems at all Bloody good Quote Link to comment Share on other sites More sharing options...
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