kerrystagmer Posted May 7, 2011 Share Posted May 7, 2011 So im into my 2b only to find scoring on the bigend journal. The oiler had broken off the crankarm and the hammer obviously was run that way. It is my assumption the crank has to come out and the flywheel pressed off so I can have it ground clean. We can do this (same shop doing the 4B work) but am I missing an easier solution? Its not horrid but certainly needs attention. I have the conrod off/out and can get good pics. The wristpin had 30 thou play so we are rebushing that as we go. Quote Link to comment Share on other sites More sharing options...
Fosterob Posted May 7, 2011 Share Posted May 7, 2011 Maybe you make a shrink fit sleeve that goes over the scored end and bore the rod to match? Can you show pics of the main bearings when you get it apart? I would like to see what the inside looks like. I am woried that the oil in the main bearings can get contaminated with foreign materials and would like to know how to change it instead of just adding to the dirty oil. Is this possible, I can not find any drain plugs on my machine. Thank you Rob Quote Link to comment Share on other sites More sharing options...
Steve H Posted May 11, 2011 Share Posted May 11, 2011 Nazel crankshafts are stupid simple- ONCE you get the flywheel off. Larry's got my old 3B that I had the crank work done on. The shop put a $&(*& load of heat on the flywheel, put a 100 ton press on it overnight and by the time they came in the next day, it had finally budged. They are a definately a press fit. Good luck! Quote Link to comment Share on other sites More sharing options...
kerrystagmer Posted May 12, 2011 Author Share Posted May 12, 2011 We have access to a trainwheel press so if its a press fit then I wont bother fighting it, ill just get it to the press. Quote Link to comment Share on other sites More sharing options...
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