Tools Required
J 42851 Front Cover Oil
Seal Installer
Removal Procedure
- Remove the water pump. Refer to
Water Pump Replacement
in Engine Cooling.
- Remove the crankshaft balancer. Refer to
Crankshaft Balancer Replacement
.
- Disconnect the camshaft position (CMP) sensor electrical connector (1).
- Remove the engine harness clips from the battery cable channel.
- Remove the CMP sensor bolt.
- Remove the CMP sensor.
- Remove the battery cable channel bolt.
- Remove and reposition the battery cable channel.
- Remove the engine front cover bolts (2).
- Remove the engine front cover (1).
Important: The engine front cover gasket is reusable.
- Remove the engine front cover gasket.
- Remove the crankshaft front oil seal from the front cover.
Installation Procedure
- Lubricate the outer sealing surface of the crankshaft
front oil seal lightly with clean engine oil. DO NOT lubricate the inner portion of
the seal.
- Position the NEW seal in the front cover so that the dimple (1) on the
rear of the seal is in the 12 o'clock position.
Important: The engine front cover must be installed and the fasteners tightened while
the sealant is still wet to the touch.
- Apply sealant GM P/N 12346286 (Canadian P/N 10953472),
or equivalent in two places (1) on the engine block where the front cover meets the
oil pan.
- 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.
- Install the front cover and gasket.
5.1. | Hold the front cover (1) up to the crankshaft (2). |
5.2. | Lift the front cover (1) while sliding the cover over the crankshaft (2). |
5.3. | Slide the front cover towards the engine block (5) while keeping the cover
raised. |
5.4. | Lower the cover down over the dowel pin (4), allowing the front cover
to rest on the sealant (3). |
- Install the engine front cover bolts.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Tighten the engine front cover bolts.
Tighten
- Tighten the bolts in sequence a first pass to 6 N·m (53 lb in).
- Tighten the bolts in sequence a final pass to 12 N·m (106 lb in).
- Position the battery cable channel into
place.
- Install the battery cable channel bolt.
Tighten
Tighten the bolt to 9 N·m (80 lb in).
- Inspect the CMP sensor O-ring for cuts,
cracks, tears or damage. Replace as needed.
- Apply a light film of clean engine oil to the CMP sensor O-ring.
- Install the CMP sensor.
Install the CMP sensor bolt.
Tighten
Tighten the bolt to 12 N·m (106 lb in).
- Install the engine harness clips to the
battery cable channel.
- Connect the CMP sensor electrical connector (1).
- Install the crankshaft balancer. Refer to
Crankshaft Balancer Replacement
.
- Install the water pump. Refer to
Water Pump Replacement
in Engine Cooling.