Isuzu 4LE2, Workshop Manual

Page: 57 / 121

54
ENGINE
10.CRANKSHAFT AND CRANKSHAFT BEARING
Outside diameters of journal and pin
If worn beyond the limits-replace
Crank journal mm (in)
Clearance between journal and bearing inside diameter
with bearing installed and without
mm (in)
Standard Limit
4LE2 60.0 (2.3622) 59.86 (2.3567)
Crank pin mm (in)
Standard Limit
4LE2 49.0 (1.9291) 48.87 (1.9240)
Standard Limit
Clearance
0.029 – 0.072 0.11
(0.0011 – 0.0028) (0.0043)
Runout of crankshaft
Replace if beyond limit
mm (in)
Standard Limit
0.025 (0.001) 0.05 (0.002)
Crankshaft gear
Check the crankshaft gear visually for damage and any
other defects.
Fig. 98
Fig. 99
Fig. 100
Fig. 101
Note:
When there occurs an uneven wear to the crankshaft,
replace it with a new one without grinding it for reuse.