Isuzu A-4BG1T User Manual

4-20 ENGINE ASSEMBLY II
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Connecting Rod Alignment
Use a connecting rod aligner to measure the parallelism
between the connecting rod big end hole and the con-
necting rod small end hole.
If either the measured parallelism exceeds the specified
limit, the connecting rod must be replaced.
Connecting Rod Alignment
(Per Length of 100 mm (3.94 in)
mm (in)
I I
Standard
I
Limit
I
Parallelism
0.05 (0.0002)
or less
0.20
(0.0079)
Piston Pin and Connecting Rod Small End Bushing
Clearance ‘.
Use a caliper calibrator and a micrometer to measure
the piston pin and connecting rod small end bushing
clearance.
If the clearance between the piston pin and the connect-
ing rod small end bushing exceeds the specified limit,
replace either the piston pin or the connecting rod bush-
ing.
mm (in) I
1 Standard 1 Limit
Piston Pin and Con-
netting Rod Small
0.012-0.025 0.05
End Bushing Clearance
(0.0004-0.0010) (0.0020)
.
Connecting Rod Bushing Replacement
Connecting Rod Bushing Removal
cl
c*
1. Clamp the connecting rod in a vise.
2. Use a brass bar and a bench press or hammer to
@remove the connecting rod bushing.

Isuzu A-4BG1T Specifications

General

Brand	Isuzu
Model	A-4BG1T
Category	Engine
Language	English