Removing
1. Remove the flywheel (see «Flywheel - removal and installation»).
Warning! When performing the following operation, do not scratch the working surface of the crankshaft.
2. With a special hook or gently prying with a screwdriver...
... remove the crankshaft oil seal from the mounting hole.
Installation
1. We apply clean engine oil to the working edge of the new oil seal and evenly press it in until it stops with light blows of a hammer with a plastic striker.
Recommendation. You can also press the oil seal with an ordinary hammer, using the old oil seal as a mandrel.
2. Further assembly of the engine is carried out in the reverse order of disassembly.