Deutz WP6C/WP4C Series Marine Diesel Engine Use and Maintenance Manual
12
Overhaul
The operation reliability of the diesel engine will be affected by wear and corrosion. To avoid
abnormal operation of the diesel engine, we recommend that complete overhaul be carried out
according to the following table. Carry out the first overhaul after 2000h’s or 2 years’ (in the case
of not reaching to 2000h) operation of the diesel engine.
Items
Operation time
Check the nozzle
2000
Check the compression pressure
2000
Check the bearing clearance of water pump
5000
Check the supercharger
5000
Check the fuel injection pump
5000
Check the cylinder head
5000
Check the cylinder liner
5000
Clean the water cavity of the water cooling
exhaust pipe and check the corrosion
10000
Check the connecting rod and the main bearing
10000
Check the piston
10000
Check the crankshaft
10000
Check the camshaft
10000
Check the secondary balance mechanism
10000
Check the transmission gear
10000
Overhaul the fuel injection pump thoroughly
10000
Replace the oil pump
10000
Replace the water pump
10000
Replace the crankshaft oil seal
10000
Replace the shock absorber
10000
The above checks and repairs require professional skills and should be carried out by
professionals.