Overhaul Intervals And Expected Life Times - WÄRTSILÄ 46F Product Manual

Wärtsilä 46F Product Guide
4.4

Overhaul intervals and expected life times

The following overhaul intervals and lifetimes are for guidance only. Achievable lifetimes depend
on operating conditions, average loading of the engine, fuel quality used, fuel handling system,
performance of maintenance etc.
Expected lifetime is different depending on fuel used. For detailed information on fuel qualities,
please see Table Heavy fuel oils.
Table 4-1
Twin pump fuel injection
- Injection nozzle
- Injection pump element
Cylinder head
- Inlet valve seat
- Inlet valve, guide and rotator
- Exhaust valve seat
- Exhaust valve, guide and rotator
Piston crown, including recondition
Piston skirt
- Piston skirt/crown dismantling one
- Piston skirt/crown dismantling all
Piston rings
Cylinder liner
Antipolishing ring
Gudgeon pin, inspection
Gudgeon pin bearing, inspection
Big end bearing
- Big end bearing, inspection of one
- Big end bearing, replacement of all
Main bearing
- Main bearing, inspection of one
- Main bearing, replacement of all
Camshaft bearing
- Camshaft bearing, inspection of one
- Camshaft bearing, replacement of all
Turbocharger inspection, cleaning
Charge air cooler
Rubber elements for flexible mounting
Table 4-2
Twin pump fuel injection
- Injection nozzle
- Injection pump element
Cylinder head
DAAB605814
Time between Overhaul
Component
Expected Life Time
Component
4. Description of the Engine
Time between inspection or overhaul (h)
LFO operation HFO1 operation
12000 12000
20000 16000
20000 16000
32000 28000
20000 16000
20000 16000
20000 16000
20000 16000
36000 36000
20000 16000
36000 36000
36000 36000
60000 60000
12000 12000
6000 6000
Expected life time (h)
LFO operation HFO1 operation
6000 6000
24000 24000
60000 60000
HFO2 operation
12000
12000
12000
24000
12000
12000
12000
12000
36000
12000
36000
36000
60000
12000
6000
HFO2 operation
6000
24000
60000
4-7