GM 12582320
Rear Main Seal

To replace the Crankshaft rear oil seal one should, first, remove the engine fly wheel and be careful not to damage the Crankshaft outside diameter surface or chamfer with a tool. Next, pry out the Crankshaft rear oil seal while using a flat-bladed tool that is inserted through the dust lip and pushing the handle toward the end of the Crankshaft, repetitively if need be. Visual inspect inside diameter of the bore and adjust or replace the Crankshaft rear oil seal as required and inspect the Crankshaft for nicks or burrs on the face that touches the seal and make necessary Crankshaft repair or replacement. For installation anoint the new crank shaft rear oil seal with engine oil both on and off the inner diameter and slide over the mandrel until it bottoms against the collar of the j 38196 rear Crankshaft Seal installer (J 38196). Hand tighten the j 38196 onto the Crankshaft, or tighten screws to 5 nm (54 inch lbs.), then rotate the t-handle on the j 38196 until the collar seats against the case properly to ensure correct seating. Loosen the t-handle as far as it goes to slide the collar for the next new seal, then remove the attaching screws. Finally, reinstall the engine Flywheel, make necessary checks in the crankcase and examining for leaks.

The replacement process for the Crankshaft rear oil seal requires transaxle removal followed by engine Flywheel removal while maintaining the integrity of Crankshaft sealing surfaces. Nicks to the Crankshaft sealing surface must be avoided throughout the procedure. Use a flat-bladed tool or comparable instrument to slide through the dust lip of the seal at an angle before carefully prying it out by pushing the tool handle towards the Crankshaft end. Repeat this step for the entire seal perimeter. Apply engine oil to the entire new Crankshaft rear oil seal surface before using the Crankshaft rear oil seal installer (J 34686) to position the replacement. After installation of the engine Flywheel and transaxle the procedure ends.

Inspect the ID of the bore and correct or replace the crankshaft rear oil seal housing as needed, and check the crankshaft for nicks or burrs on the surface that contacts the seal.

Utilize the Seal Remover (J 45000) to extract the crankshaft oil seal.

Use a small flat-bladed tool to pry it out by inserting it through the dust lip at an angle and moving the handle towards the end of the crankshaft, repeating as necessary.

Reinstall the crankshaft balancer.

First, remove the engine flywheel.

Install a new gasket, ensuring proper alignment of oil passage openings, and then place the housing onto the engine.

Take off the oil pan.

Remove the Seal Installer (J 35354) and coat the inside seal surface of the crankshaft balancer with lubricant GM P/N 10522497 or equivalent.

Inspect the ID of the bore and correct or replace the crankshaft rear oil seal housing as needed, and check the crankshaft for nicks or burrs on the surface that contacts the seal, repairing or replacing the crankshaft as required.

Clean the sealing surface and inspect for burrs or sharp edges, removing any with crocus cloth.

Attach the J 38196 to the crankshaft by hand or tighten the screws to 5 Nm (54 inch lbs.), then turn the T-handle of the J 38196 to push the seal into the bore until the collar is tight against the case, ensuring proper seating.

Remove the oil pan.

Remove the engine oil pan and flywheel.

Coat the inside seal surface of the crankshaft balancer with lubricant GM P/N 10522497 or an equivalent product.

Attach the J 38196 to the crankshaft by hand or tighten the screws to 5 Nm (54 inch lbs.).

Coat the inside seal surface of the crankshaft balancer with lubricant GM P/N 10522497 or equivalent.

Use a screwdriver to pry out the crankshaft front oil seal.

Place the EN-47623 along with the J8092 Drive Handle onto the housing, applying constant downward force until the seal is fully seated.

First, remove the crankshaft balancer.

Turn the T-handle of the J 38196 to push the seal into the bore until the collar is tight against the case, ensuring proper seating of the seal.

Loosen the T-handle until it stops to position the collar for installing another new crankshaft rear oil seal, then remove the attaching screws.

Tighten the bolts to 15 N.m (11 lb ft) plus an additional 50 degrees using the J 45059 Torque Angle Meter.

Use the crankshaft balancer bolt with the tool, tightening it until the oil seal is properly seated in the engine front cover.

First, remove the engine flywheel.

Inspect the crankshaft balancer and engine front cover for scratches.

Inspect the crankshaft balancer and engine front cover for any scratches.

Use a large screwdriver to pry out the crankshaft front oil seal, ensuring not to damage the seal bore or contact surfaces.

Proceed to install the crankshaft balancer.

Remove the engine flywheel, taking care not to damage the crankshaft outside diameter surface or the inside diameter of the crankshaft rear oil seal housing.

Replace or repair these components as necessary.

First, remove the transaxle and the engine flywheel, taking care not to nick the crankshaft sealing surface during the process.

Tighten the wing nut on the J 34686 until it bottoms out, then remove the J 34686 from the crankshaft and reinstall the engine flywheel.

Remove the engine flywheel, taking care not to nick the crankshaft sealing surface.

Remove the engine flywheel, taking care not to nick the crankshaft sealing surface.

Turn the T-handle of the J 38196 to push the seal into the bore until the collar is tight against the case, ensuring proper seating of the seal.

Clean the crankshaft sealing surface with a clean, lint-free towel and inspect the lead-in edge for burrs or sharp edges, removing any with crocus cloth.

Ensure the crankshaft front oil seal lip faces the engine.

Ensure that the lip of the seal faces the engine and that it is flush with the engine front cover.

Coat the outside seal surface of the crankshaft balancer with lubricant GM P/N 1050169 or equivalent.

Confirm that the seal is installed flush to the engine front cover.

Remove the engine flywheel, taking care not to damage the crankshaft outside diameter surface or the inside diameter of the crankshaft rear oil seal housing.