Engine Front Cover Installation

Tools Required 

J 42851  Front Cover Oil Seal Installer

1. Install the NEW crankshaft front oil seal using the J 42851. 
2. Lubricate the sealing surface of the crankshaft front oil seal with clean engine oil.

   Important:  The engine front cover must be installed and the fasteners tightened while the sealant is still wet to the touch.

3. Apply the sealant GM P/N United States 12346286, GM P/N Canada 10953472, or equivalent in two sealant points (1) on the engine block where the front cover meets the oil pan. The sealant (A) should be 2.0 mm (0.080 in) away from the front of the engine block.
   Fig 1: Engine Block-To-Front Cover Sealant Locations

   Courtesy of GENERAL MOTORS CORP.
4. Install the engine front cover gasket into the front cover.

   Important:  The following method must be used when installing the engine front cover. Failure to follow the instructions will push the sealant out, which may cause an oil leak.

5. Install the engine front cover.
   1. 5.1. Hold the front cover (1) up to the crankshaft (2).
   2. 5.2. Lift the front cover (1) while sliding the cover over the crankshaft (2).
   3. 5.3. Slide the front cover towards the engine block (5) while keeping the cover raised.
   4. 5.4. Lower the cover down over the dowel pin (4), allowing the front cover to rest on the sealant (3).
   Fig 2: Installing Engine Front Cover

   Courtesy of GENERAL MOTORS CORP.
   NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
6. Install the engine front cover bolts.

   Tighten 

   • Tighten the engine front cover bolts in sequence to 6 N.m (54 lb in) in the first pass.
   • Tighten the engine front cover bolts in sequence to 12 N.m (106 lb in) in the second pass.
   Fig 3: Engine Front Cover & Bolts

   Courtesy of GENERAL MOTORS CORP.
7. Inspect the camshaft position sensor O-ring for cuts, cracks, tears or damage. Replace the O-ring as needed.
8. Apply a light film of clean engine oil to the camshaft position sensor O-ring.
9. Install the camshaft position sensor.
   NOTE: This bolt is a self-tapping bolt. If installing this bolt into a new component, installation of the bolt may be difficult. Ensure that the bolt is not over-torqued during the initial installation (thread cutting). Failure to limit torque can lead to bolt failure.
10. Install the camshaft position sensor bolt.

    Tighten 

    Tighten the camshaft position sensor bolt to 12N.m(106lbin).

    Fig 4: Camshaft Position Sensor & Bolt

    Courtesy of GENERAL MOTORS CORP.