Crankshaft Rear Oil Seal and Housing Installation

Tools Required

• EN 46109  Guide Pin Set
• EN-47839  Crankshaft Rear Oil Seal Installation Tool
• J-42183  Handle

Fig 1: Identifying EN 46109
Courtesy of GENERAL MOTORS CORP.
1. Install the 6 mm (0.236 in) guides from the EN 46109  into the 2 crankshaft rear oil seal housing corner bolt holes of the engine block.
Fig 2: Identifying EN-47839 & J-42183
Courtesy of GENERAL MOTORS CORP.
2. Install the EN-47839  with the J-42183  (1, 2) onto the rear of the crankshaft flange.
Fig 3: Applying Sealant To Crankshaft Rear Oil Seal Housing
Courtesy of GENERAL MOTORS CORP.
3. Place a 3 mm (0.118 in) bead of RTV sealant, GM P/N 12378521 (Canadian P/N 88901148) or equivalent, to the NEW crankshaft rear oil seal housing as shown (1).
Fig 4: Removing & Installing Crankshaft Rear Oil Seal Housing
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: DO NOT allow any engine oil on the area where the crankshaft rear oil seal housing is to be installed.
4. Install the crankshaft rear oil seal housing to the engine block.
Fig 5: Identifying EN 46109
Courtesy of GENERAL MOTORS CORP.
5. Remove the EN 46109  6 mm (0.236 in) guides from the engine block.
Fig 6: Removing & Installing Crankshaft Rear Oil Seal Housing Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice in Cautions and Notices.
6. Install the crankshaft rear oil seal housing bolts.

   Tighten:  Tighten the crankshaft rear oil seal housing bolts to 10 N.m (89 lb in).

Fig 7: Identifying EN-47839 & J-42183
Courtesy of GENERAL MOTORS CORP.
7. Remove the EN-47839  and J-42183  (1, 2) from the crankshaft flange.