Thanks Chris and Ed for the excellent info. I have a new bearing and it will be press fit, I was thinking of pulling the crank and piston assy, so I bought a set of three ring compressors on ebay, I was interested on how they work. I am a long time auto mechanic, I don't know how these compressors work as when I put them over the rod/piston the compressor tool is too short by about an inch. I believe the piston/rod assy attached to the crank has to go in together and I can't see how these compressors would work. I didn't see any were that the compression tools were of different lengths as one size fits all. Any help would be well appreciated. Thanks Buz