1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .




Important: Be careful not to damage the crankshaft.

2. Pry out the crankshaft front oil seal with a suitable flat-bladed tool. Use care to avoid damaging the crankshaft front oil seal bore or the crankshaft front oil seal contact surfaces.
3. Inspect the crankshaft balancer and engine front cover for scratches.

Tools Required

J 35354-A Front Cover Seal Installer

1. Lubricate the crankshaft front oil seal with lubricant GM P/N 10522497 or equivalent.
2. Install the crankshaft front oil seal in the engine front cover using the J 35354-A .
3. Tighten the bolt until the crankshaft front oil seal is seated in the engine front cover.
4. Remove the J 35354-A .
5. Lubricate the sealing surface of the crankshaft balancer with engine oil.
6. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
7. Inspect for leaks.