Crankshaft Rear Oil Seal Housing Replacement

Special Tools

• EN-52434  Rear Cover Seal Installer
• EN-52483  Cover Installation Guide Pins

Equivalent regional tools: Special Tools 

Removal Procedure

1. Crankshaft Position Sensor Reluctor Ring - Remove - Crankshaft Position Sensor Reluctor Ring Replacement 
2. Crankshaft Position Sensor - Remove - Crankshaft Position Sensor Replacement

3. Courtesy of GENERAL MOTORS COMPANY

   Crankshaft Rear Oil Seal Housing Bolt (1) - Remove [11x]

4. Loosen the crankshaft rear oil seal housing carefully from the engine, use a suitable tool at the 2 locations (2, 3).

5. Courtesy of GENERAL MOTORS COMPANY

   Crankshaft Rear Oil Seal Housing (1) - Remove and DISCARD

Installation Procedure

1. Clean all sealing surfaces.

2. Courtesy of GENERAL MOTORS COMPANY

   Ensure proper use of room temperature vulcanizing (RTV) sealant. - Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant 

NOTE:
• All sealing surfaces must be free of contamination prior to applying the sealant.
• Installation and final torque specification must be completed within 10 minutes of applying the sealant.
3. Apply a 4 mm (0.16 in) bead of sealant (1) to the crankshaft rear oil seal housing. Increase the thickness of the sealant bead to 6 mm (0.24 in) at the marked positions (2, 3). Adhesives, Fluids, Lubricants, and Sealers 

4. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   The EN-52434-1  installer has an access hole (4) for the guide pin (5).

   EN-52434-1  installer (3) @ Crankshaft - Install

5. Tighten the 2 bolts (2, 6) on the EN-52434-1  installer
6. EN-52434-2  guide (1) @ EN-52434-1  installer - Install

7. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   Use EN-52483  Cover Installation Guide Pins (2) to help align the housing with the locating pins and the EN-52434  Rear Cover Seal Installer (3).

   EN-52483  Cover Installation Guide Pins (2) - Install [2x]

8. Crankshaft Rear Oil Seal Housing (1) - Install NEW
9. EN-52434  Rear Cover Seal Installer (2) @ Crankshaft - Remove
10. Fig 1: Identifying Crankshaft Rear Oil Seal Housing Bolts With Tightening Sequence

    Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Fastener Caution

    Crankshaft Rear Oil Seal Housing Bolt (1) - Loosely install [11x]

11. Crankshaft Rear Oil Seal Housing Bolt (1) - Tighten in sequence [11x]
    1. First Pass: 4 N.m (35 lb in)
    2. Final Pass: 8.5 N.m (75 lb in)
12. Crankshaft Position Sensor - Install - Crankshaft Position Sensor Replacement
13. Crankshaft Position Sensor Reluctor Ring - Install - Crankshaft Position Sensor Reluctor Ring Replacement