GM 10128316
Oil Seal, Front

To replace the crankshaft rear oil seal, dismantle out the Transmission Assembly and the engine Flywheel. Afterwards, apply an appropriate tool to delicately pry off the crankshaft rear oil seal from its housing and dispose of the old seal. Clean out any dirt or rust before adding a small amount (2 to 3 drops) of clean engine oil on the bore of the crankshaft rear oil seal housing, flywheels pilot flange diameter, Flywheel locator pin outside diameter, and Crankshaft Seal surface. Check the j35621-b rear main seal installer (J35621-B) for flaws and eliminate slight irregularities using least grade emery cloth, without any oil or lubricants getting to the lip surface. Take off the sleeve of the crankshaft rear oil seal and apply some clean engine oil in the amount (2 to 3 drops) at the outside diameter of the seat. Mount the crankshaft rear oil seal to the j35621-b and then on the rear of the crankshaft by hand-tightening the tool bolts until tight. Proper alignment is critical; confirm that the seal is close flush and square to the housing. Rotate the j35621-b wing nut clockwise until its sealing is done properly, as there is a greater resistance at the bottom of the housing bore. Cut the j35621-b away from the seal, and pull it out of the crankshaft. Remove all extra engine oil using clean rag get engine Flywheel and the Transmission Assembly back in place.

The service and repair of the front crankshaft seal begins with removal of the crankshaft balancer. A suitable tool should be used to take out the crankshaft front oil seal before checking the engine front cover seal bore and the crankshaft balancer sealing surface for damage. Check the integrity of pre-applied grease on the crankshaft front oil seal before installing it with J 35463 (J 35463). Before reinstalling the crankshaft balancer you must check that the crankshaft front seal matches both dimensions of the engine front cover. The J 35468 (J 35468) Cover Aligner Seal Installer stands as one of the required tools for this procedure.

A repairing or replacing the Crankshaft main bearing seal requires these tools: rear main seal installer (J 35621-B). Rear main seal installer (J 35621-B). Start by detaching both the Transmission Assembly along with the engine Flywheel. Proper tool insertion into access notches enables safe removal of the Crankshaft rear oil seal from its housing. Throw out the previous bearing seal while cleaning all the dirt and rust away from the installation area. For installation you should apply 2 to 3 drops of clean engine oil to four components: the bore of the Crankshaft rear oil seal housing, the outside diameter of the engine Flywheel pilot flange, the outside diameter of the Flywheel locator pin and the Crankshaft Seal surface. Check the j 35621-b flange for damage then remove minor imperfections with emery cloth while ensuring the seal lip surface avoids oil and lubricant contact during inspection. Apply a tiny oil drop (2 to 3 drops) from a clean oil source to the outside edge of the Crankshaft rear oil seal before installing the unit. First install the Crankshaft rear oil seal onto both the j 35621-b tool as well as the Crankshaft rear surface with hand torque on the tool bolts until they become snug. Proper alignment stands as a vital requirement during Crankshaft rear oil seal installation. Proper installation requires positioning the Crankshaft rear oil seal near flush with the housing while being square to the Crankshaft rear seal housing to minimize failure. Continue tightening the j 35621-b wing nut until the seal reaches the housing's bottom while it remains near flush and square to the surface. The tool will provide greater resistance during this final stage of installation. Free the j 35621-b from the Crankshaft rear oil seal housing and remove it from the Crankshaft. Before reinstalling both parts wipe away any remaining engine oil with a clean rag.

The crankshaft balancer needs removing as the first step for servicing and repairing the front crankshaft seal. To extract the crankshaft front oil seal select a proper tool and examine the engine front cover seal bore along with the crankshaft balancer seal area for damage. When installing the crankshaft front oil seal maintain the exterior surface clean of engine oil by using it to lubricate the part. The Crankshaft Aligner/Seal Installer (J 35468) operated with a hammer helps properly install the crankshaft front oil seal until it reaches a flush position square to the engine front cover before placing back the crankshaft balancer.

The removal process of crankshaft front oil seal begins with taking out the crankshaft balancer. Use an appropriate tool to detach the crankshaft front oil seal then inspect the seal bore on the engine front cover and the crankshaft balancer seal area for damage. Clean engine oil should be used to lubricate the new seal exterior before its installation. You should use the hammer-operated Cover Aligner/Seal Installer (J 35468) to set the new crankshaft front oil seal directly against the engine front cover while maintaining its squareness to the face of the cover. Finally, reinstall the crankshaft balancer.

To replace the crankshaft front oil seal first, remove the crankshaft balancer. Then use an appropriate prying tool to pull the front crankshaft oil seal and check for any damage to the engine front cover seal bore and the crankshaft Balancer sealing surface. Check that the pre-applied grease on the new crankshaft front oil seal is intact before installing the seal using the Cover Aligner Seal Installer (J 35468). Lastly, check that the crankshaft front seal is flush and square to the engine front cover before reinstalling the crankshaft balancer.

The crankshaft balancer needs removal before changing the crankshaft front oil seal. You must employ a proper seal puller to extract the crankshaft front oil seal after which you should check the engine front cover seal bore area for any damage. A proper lubrication of new seal exterior using clean engine oil requires the use of a Cover Aligner and Seal Installer (J 35468) and a hammer for placement onto the crankshaft front oil seal that needs to be flush and square against the engine front cover. Finally, reinstall the crankshaft balancer.

Avoid contact with the crankshaft surface.

First, remove the oil pan, transmission assembly, and engine flywheel.

First, remove the crankshaft balancer.

Turn the J 35621-B wing nut clockwise until the seal is installed correctly, feeling increased resistance when it reaches the bottom of the housing bore.

Inspect the engine front cover seal bore for damage, as well as the crankshaft balancer seal area.

Remove the sleeve and apply 2 to 3 drops of clean engine oil to its outside diameter.

Remove the crankshaft balancer.

Tighten the oil pan.

Inspect the J 35621-B flange for imperfections and remove any minor ones with fine-grade emery cloth.

Remove the crankshaft balancer.

Apply 2 to 3 drops of clean engine oil to the bore of the housing, the outside diameter of the engine flywheel pilot flange, the outside diameter of the flywheel locator pin, and the crankshaft seal surface.

Push the housing fully onto the crankshaft until it is against the gasket and engine.

Take out the crankshaft front oil seal from the front cover.

Align the oil seal into the tool.

Tighten the oil pan, reinstall the flywheel, and finally, install the transmission assembly.

Remove the sleeve and apply a small amount (2 to 3 drops) of clean engine oil to its outside diameter.

Tighten the oil pan.

Lubricate the outside diameter (OD) of the new oil seal with clean engine oil.

Inspect the engine front cover seal bore for damage, as well as the crankshaft balancer seal area.

Proper alignment is critical to ensure the seal is nearly flush and square to the housing to prevent failure.

No oil or lubricants should contact the seal lip surface.

Verify that the crankshaft front seal is flush and square to the engine front cover before reinstalling the crankshaft balancer.

Remove the sleeve from the new seal, ensuring that no oil or lubricants contact the seal lip surface.

Do not lubricate the oil seal sealing surface and avoid reusing the crankshaft oil seal.

Reinstall the crankshaft balancer.

Apply a small amount of clean engine oil to the bore of the crankshaft rear oil seal housing, the outside diameter of the engine flywheel pilot flange, the outside diameter of the flywheel locator pin, and the crankshaft seal surface.

Remove the engine flywheel and then the crankshaft rear oil seal from the rear cover.

Remove minor imperfections with fine grade emery cloth.

Lubricate the exterior of the new seal with clean engine oil.

Release the tool by turning the wing nut counterclockwise and then remove the J 35621-B from the crankshaft.