Rear Crankshaft Main Bearing Seal: Service and Repair

Crankshaft Rear Oil Seal Replacement

^ Tools Required
- J 34686 Rear Main Seal Installer

Removal Procedure





1. Remove the engine flywheel.

Important: Do not damage the crankshaft or seal bore.

2. Remove the crankshaft rear oil seal. Pry the crankshaft rear oil seal out using a suitable tool.

Installation Procedure





1. Apply engine oil to the inside diameter and the outside diameter of the new crankshaft rear oil seal.
2. Slide the crankshaft rear oil seal over the mandrel until the back of the crankshaft rear oil seal bottoms squarely against the collar of the J 34686.

Notice: Refer to Fastener Notice in Service Precautions.

3. Perform the following steps in order to install the crankshaft rear oil seal:
3.1. Align the dowel pin of the J 34686 with the dowel pin in the crankshaft.
3.2. Attach the J 34686 to the crankshaft by hand, or tighten attaching screws to 5 Nm (45 inch lbs.).
3.3. Turn the T-handle of the J 34686 in order to allow the collar to push the seal into the bore. Turn the handle until the collar is tight against the case. Ensure that the seal is seated properly.
3.4. Loosen the T-handle until the handle comes to a stop.
3.5. Remove the attaching screws.
4. Install the engine flywheel.