penno350 Posted March 13, 2011 Report Share Posted March 13, 2011 (edited) My Sherpa has run well for a couple of trials but last weekend decided to 'eat' another piston thrust washer. On stripping down it looks as if I will get away with the bore which is +1.00mm (which I think is the limit) but the piston crown has been damaged and needs to be replaced. I am not clear why it has destroyed the thrust washer. Secondly, the conrod has no up or down play but some sideways play and on one side it looks as if it has been scuffed by the flywheels. Is it worth taking the engine down and having the crank rebuilt and could this be why the thrust washers have been failing. Any advice gratefully received from experienced Bultaco owners. Edited March 13, 2011 by penno350 Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.