Tools Required

EN 46109  Guide Pin Set. See Special Tools .

Fig 1: View Of EN 46109 Guides
Courtesy of GENERAL MOTORS CORP.
1. Install the 8 mm (0.315 in) guide from the EN 46109  into the cylinder block positions as shown. See Special Tools .
Fig 2: Identifying Water Pump Seal
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2. Install the NEW engine front cover to cylinder block seal.
Fig 3: Locating RTV Sealant
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3. Place a 3 mm (0.118 in) bead of RTV sealant, GM P/N 12378521 (Canadian P/N 88901148) or equivalent, on the engine front cover as shown (1).
Fig 4: View Of Engine Front Cover
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4. Place the engine front cover onto the EN 46109  and slide into position. See Special Tools .
5. Remove the EN 46109  from the cylinder block. See Special Tools .
Fig 5: View Of Engine Front Cover Bolt
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NOTE: Refer to Fastener Notice in Cautions and Notices.
6. Hand start all the engine front cover bolts.
Fig 6: Tightening Engine Front Cover Bolts
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7. Tighten the engine front cover bolts in the sequence shown.

   Tighten:  Tighten the engine front cover bolts in the sequence to 23 N.m (17 lb ft).

Fig 7: View Of Camshaft Position Sensors
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8. Install NEW O-rings on the camshaft position sensor.
9. Place the camshaft position sensors in position on the front cover.
10. Install the camshaft position sensor bolts.

    Tighten:  Tighten the camshaft position sensor bolts to 10 N.m (89 lb in).

Fig 8: View Of Camshaft Position Actuator Valves
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11. Place the camshaft position actuator valves in position on the front cover.
12. Install the camshaft position actuator valve bolts.

    Tighten:  Tighten the camshaft position actuator valve bolts to 10 N.m (89 lb in).