The lubrication of the hollow propeller shaft
… how the propeller shaft is lubricated without contact.

How to properly lock the crankshaft with the locking screw
… and how this helps you avoid having to disassemble the engine.

THRUST WASHER 33.2/51/1.2 P/N:827992
The plastic thrust washer in the gearbox between the CLAW WHEEL and the DRIVE WHEEL 29 T