Hi all
Can anyone tell me if late MC18 and MC21 crankshaft's will fit early MC18 crankcase's.
I have two early MC18 motors in need of top and bottom end overhauls and I have access to late MC18 and MC21 cranks and barrels. The only Knowable difference to me is the centre bearing in the MC18 and MC21 crank, early MC18 crank's seem to have a separate oil seal where the late cranks have a seal intregral with the bearing. Are the bearing's interchangble as the early crank centre seal is impossible to source.
cheers for any input on this issue.