Camshaft Cover Installation - Left Side (LCS)

Special Tools

• EN 46101:  Spark Plug Tube Seal Guide
• EN-48383:  Camshaft Retaining Tools

  For equivalent regional tools, refer to Special Tools

Fig 1: View of EN 48383-2 and Camshaft
Courtesy of GENERAL MOTORS CORP.
1. Remove the EN 48383-2 from the rear of the left camshafts.
Fig 2: Identifying Spark Plug Tubes and Cylinder Head
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2. Install the EN 46101:  guide onto the spark plug tubes of the left cylinder head.
Fig 3: View of Camshaft Cover
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3. Install the NEW 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
Courtesy of GENERAL MOTORS CORP.
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: View of Camshaft Cover and Cylinder Head
Courtesy of GENERAL MOTORS CORP.
6. Place the left camshaft cover into position onto the left cylinder head.
Fig 6: View of Camshaft Cover and Bolts
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7. Loosely install the left camshaft cover bolts.
Fig 7: View of Tightening Sequence of Camshaft Cover
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CAUTION: Refer to Fastener Caution .
8. Tighten the left camshaft cover bolts in the sequence shown.
   1. Tighten the left camshaft cover bolts in the sequence to 10 N.m (89 lb in) .
   2. Tighten the left camshaft cover bolts a second pass in the sequence to 10 N.m (89 lb in) .
Fig 8: View of Spark Plug Tubes & Cylinder Head
Courtesy of GENERAL MOTORS CORP.
9. Remove the EN 46101:  guide from the spark plug tubes of the left cylinder head.
Fig 9: Identifying Spark Plugs and Cylinder Head
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10. Install the NEW spark plugs into the left cylinder head and tighten to 20 N.m (15 lb ft).
Fig 10: View of Ignition Coils and Cylinder Head
Courtesy of GENERAL MOTORS CORP.
11. Install the ignition coils.
Fig 11: View of Ignition Coil Bolts and Cylinder Heads
Courtesy of GENERAL MOTORS CORP.
12. Install the ignition coil bolts and tighten to 10 N.m (89 lb in).