Isuzu NPR 4J Series User Manual

6A – 60 GENERAL ENGINE MECHANICAL
4JG2 mm (in)
Liner
outside
Grade
Cylinder bore
diameter average
Liner outside
diameter
Liner
bore
Grade
Service liner bore measurement
AX 95.435 (3.7573) - 95.450 (3.7579)
1
97.001 - 97.010
(3.8189 - 3.8193)
97.011 - 97.020
(3.8193 - 3.8197)
CX 95.451 (3.7579) - 95.466 (3.7585)
AX 95.435 (3.7573) - 95.450 (3.7579)
2
97.011 - 97.020
(3.8193 - 3.8197)
97.021 - 97.030
(3.8197 - 3.8201)
CX 95.451 (3.7579) - 95.466 (3.7585)
AX 95.435 (3.7573) - 95.450 (3.7579)
3
97.021 - 97.030
(3.8197 - 3.8201)
97.031 - 97.040
(3.8201 - 3.8205)
CX 95.451 (3.7579) - 95.466 (3.7585)
AX 95.435 (3.7573) - 95.450 (3.7579)
4
97.031 - 97.040
(3.8201 - 3.8205)
97.041 - 97.050
(3.8205 - 3.8209)
CX 95.451 (3.7579) - 95.466 (3.7585)
NOTE:
It is most important that the correct piston grade be
used. Failure to select the correct piston grade will
result in engine failure. Always measure the cylinder
bore and select the correct piston grade.
Cylinder liner kit clearances are preset. However, the
cylinder liner installation procedure may result in
slight decreases in cylinder liner clearances. Always
measure the cylinder liner clearance after installation
to be sure that it is correct.
Cylinder Liner Installation
1. Cylinder Liner Installation Using The Special Tool.
1) Use new kerosene or diesel oil to thoroughly clean
the cylinder liners and bores.
2) Use compressed air to blow-dry the cylinder liner
and bore surfaces.
Cylinder Liner Installer: 5-8840-2313-0 (4JG2)
: 5-8840-2040-0 (4JB1 / 4JB1T/
4JB1TC)
NOTE:
All foreign material must be carefully removed from
the cylinder liner and the cylinder bore before
installation.
3) Insert the cylinder liner
!
into the cylinder body
"
from the top of the cylinder body.
6A-60-1.tif
6A-60-2.tif

Isuzu NPR 4J Series Specifications

General

Brand	Isuzu
Model	NPR 4J Series
Category	Engine
Language	English