1. Remove the Automatic Transmission. Refer to Section 7A.
2. For vehicles equipped with Manual Transmission. Refer to Transmission Removal (Isuzu) in Manual Transmission.
3. Remove the flywheel. Refer to Engine Flywheel Replacement .
4. Check to confirm rear oil seal leak.

Important: Take care not to damage the crankshaft seal surface with the pry tool.




5. Remove the seal by inserting a screwdriver or similar tool in through the dust lip. Pry out the seal by moving the tool around the seal until the seal is removed.
6. Inspect the I.D. bore for nicks or burrs. Correct the bores as required.
7. Inspect the crankshaft for nicks or burrs on seal contact surface. Repair or replace the crankshaft as required.

Tools Required

J 34686 Rear Main Bearing Oil Seal Installer

1. Lubricate the seal bore to the seal surface with engine oil.



2. Install the new oil seal. Use the J 34686 .
3. Slide the new seal over the mandrel until the dust lip bottoms squarely against the tool collar.
4. Align the dowel pin of the tool with the dowel pin hole in the crankshaft. Attach the tool to the crankshaft.

Tighten
Tighten the attaching screws to 3-7 N·m (27-62 lb in).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Tighten the "T" handle of the tool to push the seal into the bore. Continue until the tool collar is flush against the block.
6. Loosen the "T" handle completely.
7. Remove the attaching screws and the tool.
8. Check to ensure that the seal is seated squarely in the bore.
9. Install the flywheel. Refer to Engine Flywheel Replacement .
10. Install the automatic transmission. Refer to Section 7A.
11. For vehicles equipped with manual transmission. Refer to Transmission Installation (Isuzu) in Manual Transmission.
12. Start and run the engine. Check for oil leaks.