Engine Rear Cover Cleaning and Inspection

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Important:

Do not use the crankshaft oil seal again. Install a NEW crankshaft oil seal during assembly.
Do not use the rear cover-to-engine block gasket again. Install a NEW gasket during assembly.

Remove the crankshaft oil seal (1) from the rear cover.
Clean the cover in solvent. Remove the sealant from the cover oil pan surface. Refer to REPLACING ENGINE GASKETS .
CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
Dry the cover with compressed air.
Inspect the gasket sealing surfaces for excessive scratches or gouging.

Fig 1: Removing Crankshaft Oil Seal From Rear Cover
Courtesy of GENERAL MOTORS CORP.
Inspect the cover-to-oil pan threaded bolt holes for damaged threads or debris.
Inspect the crankshaft oil seal mounting bore for damage.