
4.4
Overhaul intervals and expected life times
In this list HFO is based on HFO2 specification stated in the chapter Fuel Oil System.
4.4.1
Time Between Overhaul and Expected Life Time
Table 4-1
Time Between Overhaul and Expected Life Time
Expected life time (h)
1)
Time between inspection or overhaul
(h)
Component
LFO
HFO
LFO
HFO
60000...100000
48000...60000
20000...24000
12000...20000
Piston
20000...24000
12000...20000
20000...24000
12000...20000
Piston rings
> 100000
60000...100000
20000...24000
12000...20000
Cylinder liner
> 100000
60000...100000
20000...24000
12000...20000
Cylinder head
40000...48000
36000...40000
20000...24000
12000...20000
Inlet valve
20000...40000
20000...32000
20000...24000
12000...20000
Exhaust valve
2)
4000...6000
4000...6000
2000
2000
Inj.valve nozzle
-
-
12000
12000
Injection pump
24000
24000
-
-
Injection pump ele-
ment
48000
48000
24000...32000
24000...32000
Main bearing
24000...32000
24000...32000
20000...24000
12000...20000
Big end bearing
NOTE
1) Achieved life times very much depend on the operating conditions, average
loading of the engine, fuel quality used, fuel handling systems, performance of
maintenance etc.
2) Nimonic Exhaust valve lifetime at ULS is 12000h
4.5
Engine storage
At delivery the engine is provided with VCI coating and a tarpaulin. For storage longer than 3
months please contact Wärtsilä Finland Oy.
4-8
Wärtsilä 32 Product Guide - a21 - 7 September 2016
Wärtsilä 32 Product Guide
4. Description of the Engine
Содержание WARTSILA32
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