Removal of the timing gears
Drain the engine oil (Changing engine oil and filter cartridge).
Drain the cooling system (Changing the coolant).
Remove the cooling system pipes (Removing cooling system pipes and unions).
Remove the generator cover (Removing the generator cover).
Remove the flywheel/generator unit (Removing the flywheel/generator unit).
Slide out driving gear (A) of timing gear pair (1) and remove key (2).
Straighten out the lockwasher (3) of nut (4).
Restrain the driven timing gear by inserting a pin in one of the holes, and unscrew the nut (4).
Remove nut (4), washer (3), driven timing gear (B) and key (5) from the timing layshaft.