Rear Mechanism - Disassemble And Inspect - Mitsubishi S12A2 Service Manual

Chapter 5 DISASSEMBLY OF BASIC ENGINE

2. Rear Mechanism - Disassemble and Inspect

Understanding of the current engine condition before disassembling is very important to know the cause of trouble and do the
efficient work.
Depending on the maintenance work or purpose, it is desirable to inspect some of the following items before proceeding with
any job.
Flywheel Face and Radial Runout - Measure
Timing Gear Backlash - Measure
Idler Gear and Camshaft End Play - Measure
Flaw, wear,
key groove defect
9
9
Oil pressure
Electronic
governor spec
governor spec
Crack, dowel hole defect
Tachometer spec
Disassembling Sequence
1 Pick up (electronic governor spec)
2 Flywheel (Approx. 83 kg [183 lb])
3 Timing gear case (Approx. 43 kg [95 lb])
4 Oil seal
5 Oil seal slinger
6 Thrust plate
7 Idler gear
8 Fuel injection pump gear
5-8
12
14
13
10
8
1
3
Non-
Non-
attachment spec
attachment spec
Rear Mechanism - Disassemble and Inspect
9
Flaw, wear
11
Oil hole clogging
Flaking, wear,
key way deformation and wear
6
7
Hour meter spec
1
4
Wear, flaw, deterioration
9 Accessory drive (electronic governor spec)
Governor drive (Oil pressure governor spec)
(Refer to the chapter "FUEL SYSTEM" for disassembly, in-
spection and assembly.)
10 Camshaft gear
11 Thrust plate
12 Camshaft (Approx. 25 kg [55 lb.])
13 Idler shaft
14 Rear plate (Approx. 21 kg [46 lb])
Replace: Gasket, O-ring
Groove crack, wear
5
Wear, flaw,
deterioration
Non-
Non-
attachment spec
attachment spec
2
Crack, dowel hole defect,
flaw on gear, abnormal wear