Camshaft Cover Installation - Left

Tools Required

• EN 46101  Spark Plug Tube Seal Guide
• EN 46105  Camshaft Locking Tool

Fig 1: View Of EN 46105-2
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1. Remove the EN 46105-2 from the rear of the left camshafts.
Fig 2: Installing EN 46101 Into Spark Plug Holes
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2. Install the EN 46101  onto the spark plug tubes of the left cylinder head.
Fig 3: Identifying Camshaft Cover Bolt Grommets
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3. Install the camshaft cover bolt grommets prior to installing the camshaft cover bolts.
4. Wipe the camshaft cover sealing surface on the left cylinder head with a clean, lint-free cloth.
Fig 4: Locating Engine Front Cover Split Lines
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5. Place a bead 8 mm (0.3150 in) in diameter by 4 mm (0.1575 in) in height of RTV sealant, GM P/N 12378521 (Canadian P/N 88901148) or equivalent, on the engine front cover split lines (1).
Fig 5: Aligning Left Camshaft Cover On Left Cylinder Head
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6. Place the left camshaft cover into position onto the left cylinder head.
Fig 6: Identifying Left Camshaft Cover Bolts
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7. Loosely install the left camshaft cover bolts.
Fig 7: Tightening Sequence For Left Camshaft Cover Bolts
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NOTE: Refer to Fastener Notice in Cautions and Notices.
8. Tighten the left camshaft cover bolts in the sequence shown.

   Tighten:  Tighten the left camshaft cover bolts in the sequence to 10 N.m (89 lb in).

Fig 8: Removing EN 46101 From Spark Plug Tubes
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9. Remove the EN 46101  from the spark plug tubes of the left cylinder head.
Fig 9: Installing Spark Plugs
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10. Install the NEW spark plugs into the left cylinder head.

    Tighten:  Tighten the spark plugs to 20 N.m (15 lb ft).

Fig 10: Identifying Left Cylinder Head Ignition Coils
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11. Install each ignition coil through the left camshaft cover into the spark plug tube taking care not to damage the spark plug and/or the seal in the left camshaft cover.
12. Install each ignition coil bolt.

    Tighten:  Tighten the ignition coil bolt to 10 N.m (89 lb in).