52. Engine Front Cover Cleaning and Inspection

Engine Front Cover Cleaning and Inspection (LS3 with Z52 Option, LS7, LS9)





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

1. Remove the crankshaft oil seal (140) from the front cover.
2. Remove the camshaft position (CMP) sensor (703) and bolt (705).
3. Remove the seal (704) from the sensor, if required.
4. Clean the cover in solvent. Remove the sealant from the cover oil pan surface. Refer to Replacing Engine Gaskets (Replacing Engine Gaskets).
Warning: Refer to Safety Glasses Warning (Safety Glasses Warning).

5. Dry the cover with compressed air.
6. Inspect the gasket sealing surfaces for excessive scratches or gouging.
7. Inspect the threaded bolt holes for damaged threads or debris.
8. Inspect the crankshaft oil seal and CMP sensor bore for damage.