Crankshaft Rear Oil Seal and Housing Installation

Tools Required

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

Fig 1: View Of 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. See Special Tools .
Fig 2: Installing EN-47839
Courtesy of GENERAL MOTORS CORP.
2. Install the EN-47839  with the J 42183  (1, 2) onto the rear of the crankshaft flange. See Special Tools .
Fig 3: Identifying Sealant Application Area On 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: 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: View Of EN 46109
Courtesy of GENERAL MOTORS CORP.
5. Remove the EN 46109  6 mm (0.236 in) guides from the engine block.
Fig 6: Locating Crankshaft Rear Oil Seal Housing Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice .
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: View Of EN-47839 & J-42183
Courtesy of GENERAL MOTORS CORP.
7. Remove the EN-47839  and J 42183  (1, 2) from the crankshaft flange. See Special Tools .