just have dirt in the end of the cylinder. you could try taking some emery cloth or wet dry sandpaper and clean the end of the cylinder til the puck slides in easily. use light oil as lube and wetness. clean and oil light ly before assembly.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.