Specifications

4M41 ENGINE -
Timing Gear and Balance Shaft
11B-19-2
Removal steps
1. Upper guide plate
2. Cam sprocket
"
G
A 3. Timing chain
4. Bolt
5. Tension lever
6. Tension lever shaft
7. Lower guide plate
8. Bolt
9. Guide plate washer
10. Guide plate
11. Bolt
"
F
A 12. Balance shaft assembly RH
13. Bolt
14. W asher
15. Balance shaft gear RH
16. Thrust spacer
17. Oil pump assembly
18. Key
19. Balance shaft RH
20. O-ring
21. O-ring
22. Bolt
23. Idler washer
"
E
A 24. Idler gear assembly LH
A
A
""
D
A 25. Idler gear bush LH
26. Idler gear LH
27. Idler shaft
28. Bolt
"
C
A 29. Balance shaft assembly LH
30. Bolt
31. W asher
32. Balance shaft gear LH
33. Thrust spacer
34. Bush
35. Thrust plate
36. O-ring
37. Key
38. Balance shaft LH
39. Oil jet assembly
40. Bolt
41. Idler washer
"
B
A 42. Idler gear and sprocket assembly
A
B
""
A
A 43. Idler sprocket bush
44. Idler gear and sprocket
45. Idler shaft
Caution
After installing the bolt 4, check that the tension lever 5 moves smoothly.
PRE-REMOVAL INSPECTION
1. BACKLASH
Measure backlash between gears, pair by pair, at three
or more points. If the reading exceeds the specified service
limit, replace defective part.
Standard value:
Balance shaft gear RH and oil pump gear
0.04 - 0.19 mm
Oil pump gear and crankshaft gear
0.04 - 0.18 mm
Crankshaft gear and idler gear 0.04 - 0.18 mm
Idler gear and idler gear LH 0.04 - 0.19 mm
Idler gear LH and balance shaft gear LH
0.04 - 0.22 mm
Idler gear and injection pump gear
0.04 - 0.21 mm
Limit:
Balance shaft gear RH and oil pump gear
0.3 mm
Oil pump gear and crankshaft gear 0.3 mm
Crankshaft gear and idler gear 0.3 mm
Idler gear and idler gear LH 0.3 mm
Idler gear LH and balance shaft gear LH
0.4 mm
Idler gear and injection pump gear 0.4 mm
PWEE9409-D
E
Feb. 2000Mitsubishi Motors Corporation Added