Installation Procedure

IMPORTANT:

Do not reuse the crankshaft oil seal or front cover gasket.
Do not apply any type of sealant to the front cover gasket, unless specified.
The special tool in this procedure is used to properly center the front crankshaft front oil seal.
- All gasket surfaces should be free of oil or other foreign material during assembly.
- The crankshaft front oil seal MUST be centered in relation to the crankshaft.
- An improperly aligned front cover may cause premature front oil seal wear and/or engine oil leaks.

Apply a 5 mm (0.20 in) bead of sealant GM P/N 12378190, or equivalent 20 mm (0.80 in) long to the oil pan to engine block junction.
Install the front cover gasket and cover.

Fig 1: View Of Front Cover & Bolts
Courtesy of GENERAL MOTORS CORP.
Install the front cover bolts until snug. Do not overtighten.

Fig 2: View Of Oil Pan-To-Front Cover Bolts

Courtesy of GENERAL MOTORS CORP.

Fig 3: View of J 41476 Installed To Front Cover

Courtesy of GENERAL MOTORS CORP.

Install J 41476 to the front cover. See Special Tools .
Align the tapered legs of the J 41476 with the machined alignment surfaces on the front cover. See Special Tools .
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the crankshaft balancer bolt until snug. Do not overtighten.
Tighten:
1. Tighten the oil pan to front cover bolts to 25 N.m (18 lb ft).
2. Tighten the engine front cover bolts to 25 N.m (18 lb ft).
Remove the J 41476 . See Special Tools .
Install a NEW crankshaft front oil seal. Refer to Crankshaft Front Oil Seal Replacement .
Install the water pump. Refer to Water Pump Replacement (4.3L) or Water Pump Replacement (4.8L, 5.3L, and 6.0L) in Engine Cooling.