Remove the timing belt pulleys (
Disassembling the camshaft pulleys).
Remove the generator side cover (
Removing the generator cover) and the complete generator (
Removing the flywheel/generator unit).
Remove the connecting rod assembly from the crankcase halves (
Removal of the connecting rod assembly).
Disassemble the connecting rod assembly (
Disassembly of the connecting rod assembly).
In the event of excessive wear, replace the connecting rod. The small end bushing must be in good condition and firmly driven
into its seat. Check for parallelism error measured at 100 mm from the connecting rod longitudinal axis:
it must be H-h lower than 0.02 mm (standard H of the new part is 124 mm); otherwise replace the connecting rod.
Big end diameter must be within the specified range.
It is preferable to use crankshafts and connecting rods of the same size class.
The main bearing and big-end journals should not be scored or grooved.
The threads, keyways, and slots must be in good condition.
Check for fretting or burrs in the fillet between journal and shoulder.
Use a micrometer to measure oval and taper of the crank pin. Measure oval and taper in several different directions.