Anthony Posted August 19, 2012 Share Posted August 19, 2012 Yes or no?My pistons have light spots of corrosion on themShould I try cleaning them up with some 2000 grit sandpaper and polishOr should I buy some new stainless ones?Stainless are £15eaStandard are £7ea Link to comment Share on other sites More sharing options...
Richard B Posted August 20, 2012 Share Posted August 20, 2012 Hopefully the stainless ones will be less likely to sieze up if the car is left standing at any time.Don't know how much you intend to use it when done its ready? but normal fluid is supposed to be changed every two years to prevent water in the system causing corrosion. Silicon fluid would help prevent that, but.... Link to comment Share on other sites More sharing options...
Nick Moore Posted August 20, 2012 Share Posted August 20, 2012 I read somewhere that the stainless steel pistons weren't as finely polished as the chrome plated originals. The result would be a shortened life for the seals. Perhaps polishing them before installation would help? Link to comment Share on other sites More sharing options...
markcro Posted August 20, 2012 Share Posted August 20, 2012 I rebuilt my calipers a few months ago (but that is a different story! Don't mention the war!!), anyway I had to make this decision when ordering the pistons and I went for the standard steel ones based on cost. For if the original steel ones only needed to be replaced now after 39 years I recon that I won't care much if they need to be done again in another 39 years or not. Link to comment Share on other sites More sharing options...
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