Rear Engine Plate: Service and Repair

Engine Rear Cover Replacement

Special Tools

J 41476 Front and Rear Cover Alignment Tool

Removal Procedure




1. Remove the engine flywheel. Refer to Engine Flywheel Replacement (Service and Repair).
2. Remove the crankshaft rear oil seal housing bolts (1).




3. Remove the crankshaft rear oil seal housing bolts.
4. Remove the crankshaft rear oil seal housing and gasket.
5. Discard the crankshaft rear oil seal housing and gasket.
6. Clean and inspect the crankshaft rear oil seal housing. Refer to Crankshaft Rear Oil Seal Housing Cleaning and Inspection (Crankshaft Rear Oil Seal Housing Cleaning and Inspection).

Installation Procedure





Important:
* Do not reuse the crankshaft oil seal or rear cover gasket.

* Do not apply any type of sealant to the rear cover gasket unless specified.

* The special tool in this procedure is used to properly center the crankshaft rear oil seal.

* Install the crankshaft rear oil seal after the rear cover has been installed and aligned.

Install the rear cover without the crankshaft oil seal.


^ All gasket surfaces should be free of oil or other foreign material during assembly.

^ Center the crankshaft rear oil seal in relation to the crankshaft.

^ An improperly aligned rear cover may cause premature rear oil seal wear and/or engine assembly oil leaks.


1. Apply a 5 mm (0.2 in) bead of sealant GM P/N 12378190, or equivalent 20 mm (0.8 in) long to the oil pan to engine block junction.




2. Install the crankshaft rear oil seal housing gasket and cover.
3. Install the crankshaft rear oil seal housing bolts until snug. Do NOT over tighten.




4. Install the crankshaft rear oil seal housing bolts (1) until snug. Do not over tighten.




5. Rotate the crankshaft until 2 opposing flywheel bolt holes are parallel to the oil pan surface.
Important: The tapered legs of the alignment tool must enter the rear cover oil seal bore.


6. Install J 41476 and bolts onto the rear of the crankshaft.

Notice: Refer to Fastener Notice (Fastener Notice).

7. Tighten J 41476 mounting bolts until snug. Do not overtighten.

1. Tighten the oil pan-to-crankshaft rear oil seal housing bolts to 12 Nm (106 in. lbs.).
2. Tighten the engine crankshaft rear oil seal housing bolts to 30 Nm (22 ft. lbs.).

8. Remove J 41476.
9. Install a NEW crankshaft rear oil seal. Refer to Crankshaft Rear Oil Seal Replacement (Service and Repair).
10. Install the engine flywheel. Refer to Engine Flywheel Replacement (Service and Repair).