Checks and inspections crankcase

CHECKS AND INSPECTIONS CRANKCASE

• Visibly check the crankcase for cracks and signs of excessive wear of the sliding surfaces; check that all the threads are intact.
• Remove the plugs of the lubricating and cooling ducts and clean the dusc t using a suitable detergent, then dry them with a jet of air and refit new plugs.
• Remove any traces of seals and sealant from the crankcase surfaces.

Checking the cylinder liners

1. Using a bore gauge fitted with dial gauge, measure the inside diameter of the cylinder liners and check that it is within the specified limits.

Checking the cylinder liner protrusion (without seal rings)

NOTE: This procedure, to be carried out as a preliminary control of the correct coupling between the cylinder liners and crankcase, should be carried out without the seal rings, therefore there is no need for the liner stopper tool, which if tightened to the specified torque would annul the thickness.

1. Insert the cylinder liners in the crankcase ensuring that they reach the stroke limit.

1. Assemble tool no. 1.825.003.000 (C.6.0148) complete with centesimal dial gauge suitably set to zero, on the crankcase first on one side and then on the other so that the feeler rests on the edges of the cylinder liner and check that the protrusion is within the specified tolerances.