Isuzu NHR 4J Series, Workshop Manual

Page: 224 / 406

4JB1/4JB1T/4JB1TC/4JG2 – ENGINE 6A1 – 89
• If the connecting rod upper bearings are to be
reinstalled, mark their fitting positions by tagging each
bearing with the cylinder number from which it was
removed.
9. Front Oil Seal (Belt Drive Model)
• 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
10. Timing Gear Housing
10a. Timing Pulley Housing
11. Water Pump Assembly
12. Flywheel and Cylinder Body Rear Plate
• Set the flywheel stopper.
• Loosen the flywheel fixing bolts then remove the
flywheel.
• Remove the cylinder block rear plate.
13. Rear Oil Seal (Gear and Belt Drive Model)
• With the oil seal pushed in deep, install the special tool
as shown in the illustration to remove the oil seal.
Rear Oil Seal Remover: 5-8840-2360-0
NOTE:
Take care not to damage sealing surface of front plate
and crankshaft when removing oil seal.
14. Crankshaft and Main Bearing
1) Remove the main bearing caps and thrust washer.
2) Remover the crankshaft with care.
3) Remove the crankshaft upper bearing.
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