Overhaul Intervals And Expected Life Times; Engine Storage - WÄRTSILÄ WÄRTSILÄ 50DF Product Manual

4. Description of the Engine
4.5

Overhaul intervals and expected life times

The following overhaul intervals and lifetimes are for guidance only. Actual figures will be
different depending on operating conditions, average loading of the engine, fuel quality used,
fuel handling system, performance of maintenance etc. Expected component lifetimes have
been adjusted to match overhaul intervals.
Table 4-1
Component
Piston, crown
Piston, skirt
Piston rings
Cylinder liner
Cylinder head
Inlet valve
Inlet valve seat
Exhaust valve
Exhaust valve seat
Injection valve nozzle
Injection valve complete
Injection pump element
Pilot fuel pump
Main bearing
Big end bearing
Small end bearing
Camshaft bearing
Turbocharger bearing
Main gas admission valve
1) Inspection of one
4.6

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.
4-10
Time between overhauls and expected component lifetimes
Time between inspection or overhaul [h]
MDF/GAS
operation
18000-24000
18000-24000
18000-24000
18000-24000
18000
18000
18000
18000
18000
6000
6000
12000-18000
24000
1)
18000-24000
18000-24000 1)
1)
18000-24000
36000 1)
12000
18000
Wärtsilä 50DF Product Guide - a16 - 9 September 2016
Wärtsilä 50DF Product Guide
Expected component lifetimes [h]
HFO MDF/GAS
operation operation
12000 96000-120000
12000 96000-120000
12000 18000-24000
12000 180000
12000 72000
12000 36000
12000 36000
12000 36000
12000 36000
6000 6000
6000 18000
12000 24000-36000
24000 24000
1)
18000 36000
18000 1) 36000
1)
18000-24000 36000
36000 1) 72000
12000 36000
18000 18000
HFO
operation
36000
60000
12000
72000
60000
24000
24000
24000
24000
6000
18000
24000
24000
36000
36000
36000
72000
36000
18000