Isuzu NHR 4J Series, Workshop Manual

Page: 106 / 406

GENERAL ENGINE MECHANICAL 6A – 39
6. Oil Pump Assembly
Above works refer to “PISTON AND CONNECTING ROD”
Section in this manual.
5a. Timing Pulley Housing
1) Install the timing pulley housing to the cylinder body.
NOTE:
Take care not to twist the front oil seal.
2) Tighten the timing pulley housing bolt together with the
timing pulley housing gasket to the specified torque.
N ∙ m (kg ∙ m/lb ∙ ft)
19 (1.9/14)
3) Cut away the gasket protruding above the fitting
surfaces (as shown in the illustration)
5. Timing Gear Housing
1) Install the timing gear housing to the cylinder body.
2) Tighten the timing gear housing bolt together with the
timing gear housing gasket to the specified torque.
N ∙ m (kg ∙ m/lb ∙ ft)
19 (1.9/14)
3) Cut away the gasket protruding above the fitting
surface (as shown in the illustration).
4. Front Oil Seal (Gear Drive Model)
• Install oil seal using special tool.
Installer: 5-8840-2061-0
4. Front Oil Seal (Belt Drive Model)
• Install oil seal using special tool.
Installer: 5-8840-2361-0
NOTE:
Wipe off rust and scraps clean from the press-in
portion of the oil seal.
Take note of the press-in direction of the oil seal.
1) With the oil seal attached to the sleeve, put it in the
front end of the crankshaft.
2) With the edge 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.
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