Crankshaft removal

1. Remove the cylinder liner and O-Ring.
2. Extract the gas rings and the oil scraper from the pistons with a suitable tool.

IMPORTANT: Be careful not to damage rings which could be re-used.

3. Extract the two pin snap rings.
4. Extract the pin and separate the piston from the connecting rod.

CRANKSHAFT REMOVAL

• Turn the engine on the overhaul stand.

1. Loosen the main bearing fastening nuts and remove the front and central main bearings with a suitable tool.
2. Remove the respective main half-bearings.

25 Nm + 79°
2.5 kgm + 79°

1. Remove the rear main bearing with lever no. 1.821.006.001 (A.3.0139/0001) and fork no. 1.821.006.002 (A.3.0139/0002).
2. Remove the respective main half-bearing.
3. Remove the seals.

1. Remove the crankshaft rear oil seal.
2. Remove the crankshaft.
3. Remove the thrust half-bearings.
4. Remove the main journal half-bearings.