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If you're going to the expense of fitting a new piston are you also fitting a new seal?
These seals get a buildup of hardened crud in the groove behind them which needs to be scraped out before the new seal is installed.
This build up behind the old seal along with possible age hardening of the seal are likely what gave you trouble on the test assembly
These seals get a buildup of hardened crud in the groove behind them which needs to be scraped out before the new seal is installed.
This build up behind the old seal along with possible age hardening of the seal are likely what gave you trouble on the test assembly
