Cylinder Bore
Reboring cylinder
Permissible oversize mm 0.5 to 1.0 After reboring the cylinders, destroy the original index on (see parts microfiche) the crankcase and stamp in the new oversize one.
Bore
Permissible out - of - round mm 0.013 Measure out - of - round at four different levels of bore.
Permissible taper mm 0.013
Pistons over upper edge
of cylinder bore mm 0.40 to 0.70
Peak - to - valley height of
seal surface mm 0.02
Peak - to - valley height of
running surface mm 0.005 to 0.015