Isuzu NHR 4J Series, Workshop Manual

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6A1 – 74 4JB1/4JB1T/4JB1TC/4JG2 - ENGINE
12. Crankshaft Pulley Center
• Remove the pulley center by using special tool.
Remover: 5-8840-0161-0
13. Crankshaft Timing Pulley
14. Front Oil Seal
• Remove the oil seal by using special tool.
• With the oil seal pushed in deep, install the special tool
as shown in the illustration to remove the oil seal.
Front oil seal remover: 5-8840-2362-0
NOTE:
Take care not to damage sealing surface of front plate
and crankshaft when removing oil seal.
INSTALLATION
14. Front Oil Seal
• Install the oil seal by using special tool.
Installer: Front oil seal: 5-8840-2361-0
1) With the sleeve attached to the oil seal, put it in the
front end of the crankshaft.
2) With the edge portion of the oil seal attached securely
to the crankshaft, tighten it with the center bolt until the
sleeve hits securely against the reference plane at the
front end of the crankshaft.
3) Remove the sleeve.
4) After pressing in the seal, check the measurement of
the oil seal.
Standard mm (in)
0.6 - 1.2 (0.024 - 0.047)
NOTE:
•
Install the oil seal after assembling the timing
pulley housing.
•
The lip portion of the oil seal is applied with oil.
•
Take note of the press-in direction of the oil seal.
13. Crankshaft Timing Pulley
12. Crankshaft Pulley Center
• Install the timing pulley center and tighten bolt to the
specified torque.
Pulley Center Bolt Torque N ∙ m (kg ∙ m/lb ∙ ft)
206 (21/152)
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