Tools Required
J 22102 Seal Installer
Important: Replacing either of the following will affect timing:
• The timing chain
• The timing gears
• The front cover
• The Crankshaft Position (CKP) sensor
• The crankshaft
It will then be necessary to reprogram TDC Offset (Recovery) into the PCM. Refer to Engine Controls.
1. Clean the front cover and the block sealing surfaces, in order to ensure that they are free from oil.
Notice: Perform TDC Offset Recovery procedure if the timing chain, timing gears, engine front cover, crankshaft position sensor, crankshaft or other components affecting the timing are replaced.
2. install the front crankshaft oil seal using the J 22102 with the open end of the seal facing the inside cover.
3. Coat the seal lips with grease.
4. Apply a 2 mm (3/32 in) bead of anaerobic sealant GM P/N 1052357, or the equivalent, to the front cover sealing area.
5. Install the front cover to the engine.
Notice: Refer to Fastener Notice in Cautions and Notices.
6. Install the front cover bolts.
Tighten
Tighten the front cover bolts to 45 N-m (33 Ib ft).
