Isuzu A-4BG1T - Page 85

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ENGINE ASSEMBLY II 443
mm (in)
Crankshaft Pin Diameter
63.924-63.944
(2.5167-2.5175)
4. Measure the crankshaft journal outside diameter
(and/or the crankpin outside diameter) and the bear-
ing inside diameters to determine the bearing clear-
ance.
Crankshaft Journal and Bearing Clearances
If the bearing clearance exceeds the specified limit, the
crankshaft must be reground (except 4BDlT, GBDIT,
6BGl and 6BGlT) and/or the bearing must be replaced.
mm (in)
1 6B Engines Only I Position ati Standard
1 Limit I
Crankshaft Journal
and Main Bearing
Clearance
Center
Bearing
Only
0.039-0.098
(0.0015-0.0039)
Other
0.025-0.084
Bearings (0.0010-0.0033)
0.11
- (0.0043)
mm (in)
4B Engines Only ( Position at[ Standard
1 Limit 1
Crankshaft Journal All
and Main Bearing
0.039-0.098 0.11
Clearance
Bearings (0.0015-0.0039) (0.0043)
mm (in)
1 Standard f
Limit
I
Crankpin and
Connecting Rod
0.03-0.07
0.10
Bearing Clearance
(0.0012-0.0028)
(0.0039)