September 2, 2025Sep 2 Just looking at a 199A Crank. No up and down movement in the big end but a lot of clearance side to side. Does this look normal?
September 4, 2025Sep 4 Whenever I split a crank I always measure the width of the wheels so that I can be sure that the tolerance is the same when it goes back in, I have never seen that much clearance and would presume it needs pressing up a bit more. As Konrad observed he doesn't fiddle with antiques which is understandable as they often have unique measurements and need fiddling to get right. Good luck
September 4, 2025Sep 4 The service manual mentions 250cc - 360cc rod side clearance should be .022 - .024-inch (.55 - .60mm). Section 6 (16 pages) in the service manual is on rebuilding and alignment of the crankshaft.
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