Mitsubishi 4DQ50 User Manual

7 Re·screwing of main bolts .................................... 55
7·' Cylinder head clamp bolts .............................•... 56
7·2 Main bearing caps and connecting rod caps ...................... 56
7·3 Others .............................................. 56
CHAPTER 4 TROUBLE·SHooTING.................................. 59
Trouble shooting chart .•••. . • . . . . . . • • . • . • • . . . • • • • • . • • . • . . • . • • • •• 60
2 Trouble shooting chart (Appendix) •.• . • • . • • • • • . • • . • . • . . . . . . • • • . • . • . •• 64
CHAPTER 5 OVERHAULING INSTRUCTIONS ........................ 69
General instructions ........................................ 69
2 Cylinder head and valves ..................................... 70
2·' Reface of valve seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 70
2·2
How to replace valve guides ................................ 70
2·3
Combustion chamber jet and director ......................... 70
2·4
Rocker shaft brackets .......•............................ 71
3 Pistons and connecting rods . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 71
3·' How to remove and install piston and connecting rod ass'y ........... 71
3·2 How to ceuple piston with connecting rod ...................... 72
3-3 How
to remove and install piston pins ......................... 72
4 Cylinders
................................................ 73
4·' Oversizes ............................................ 73
4-2 Cylinder liners ............... . . . . . . . . . . . . . . . . . . . . . . . . .. 73
5 Bearing metals
............................................ 73
5·' General cautions ....................................... 73
5-2
How to assemble main bearing metals . _ . . . . . . . . . . . . . . . . • . . . . .. 74
5-3 Undersizes ..•....•................................... 74
6 Timing gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 74
6·' Timing gear train .•..................................... 74
6·2 Valve timing .......................................... 75
7
Oil seals ................................................ 76
8 Mountings
.............................................. 76
9
Oil pan installing .......................................... 77

Mitsubishi 4DQ50 Specifications

General

Brand	Mitsubishi
Model	4DQ50
Category	Engine
Language	English