Lubrication System; Oil Pump; Structure And Operation - Mitsubishi 6M60-TL Service Manual

STRUCTURE AND OPERATION

1. Lubrication System

1 Engine oil pressure switch
2 Main oil gallery
3 Bypass valve
4 Oil cooler
5 Engine oil bypass alarm
switch
6 Full-flow filter element
7 Bypass filter element
8 Relief valve (built into oil
pump)

2. Oil Pump

9 Oil pump
10 Oil strainer
11 Regulator valve
12 Crankshaft main bearing
13 Connecting rod bearing
14 Connecting rod bushing
15 Check valve for oil jet
16 Piston
17 Air compressor
18 Timing gear
19 Camshaft bushing
20 Rocker bushing
21 Roller
22 Valve bridge
23 No.1 Idler shaft
24 No.2 Idler shaft
25 No.3 Idler shaft
26 Turbocharger
27 Oil pan
• This engine uses a gear-type oil pump
driven by the rotation of the crankshaft
transmitted through the engagement
of the crankshaft gear and the oil
pump gear.
• The oil pump has a relief valve, which
prevents excessive pressure from
building up inside the lubricating sys-
tem by allowing part of the engine oil
to escape to the oil pan when the oil
pressure exceeds a specified level.
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