4.4
Overhaul intervals and expected lifetimes
The following overhaul intervals and lifetimes are for guidance only. Actual figures will be
different depending on service conditions. Expected component lifetimes have been adjusted
to match overhaul intervals.
In this list HFO is based on HFO2 specification stated in the chapter 6.. Fuel Oil System.
Table 4-1
Time between overhauls and expected component lifetimes
MDF
HFO
MDF
HFO
Component
Expected component lifetimes [h]
Time between overhauls [h]
40000
30000
20000
10000
Piston crown
20000
10000
20000
10000
Piston rings
60000
40000
20000
10000
Cylinder liner
60000
50000
20000
10000
Cylinder head
40000
30000
20000
10000
Inlet valve
40000
20000
20000
10000
Exhaust valve
4000
4000
2000
2000
Injection nozzle
40000
20000
20000
10000
Injection element
40000
30000
20000
10000
Main bearing
20000
10000
20000
10000
Big end bearing
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.
Wärtsilä 20 Product Guide - a13 - 6 September 2016
4-5
4. Description of the Engine
Wärtsilä 20 Product Guide
Содержание WARTSILA 20
Страница 1: ...W RTSIL 20 PRODUCT GUIDE...
Страница 34: ...This page intentionally left blank...
Страница 42: ...This page intentionally left blank...
Страница 86: ...This page intentionally left blank...
Страница 92: ...This page intentionally left blank...
Страница 124: ...This page intentionally left blank...
Страница 140: ...This page intentionally left blank...
Страница 154: ...This page intentionally left blank...
Страница 160: ...This page intentionally left blank...
Страница 172: ...This page intentionally left blank...
Страница 175: ......
Страница 176: ......
Страница 177: ......