Camshaft Cover Installation - Left Side (LF4)

Special Tools

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

For equivalent regional tools, refer to Special Tools (LF4) .

Fig 1: Camshaft Retaining Tool And Camshafts
Courtesy of GENERAL MOTORS COMPANY
1. Remove the EN-48383-2  from the rear of the left camshafts.
Fig 2: Special Tool And Spark Plug Tubes
Courtesy of GENERAL MOTORS COMPANY
2. Install the EN-46101  guide onto the spark plug tubes of the left cylinder head.
3. Wipe the camshaft cover sealing surface on the left cylinder head with a clean, lint-free cloth.
Fig 3: Engine Front Cover Split Lines
Courtesy of GENERAL MOTORS COMPANY
4. Ensure proper use of room temperature vulcanizing (RTV) sealant. Refer to Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
5. Place a bead 8 mm (0.3150 in) in diameter by 4 mm (0.1575 in) in height of RTV sealant, on the engine front cover split lines (1). Refer to Adhesives, Fluids, Lubricants, and Sealers (LF4) .
Fig 4: Camshaft Cover
Courtesy of GENERAL MOTORS COMPANY
6. Place the left camshaft cover into position onto the left cylinder head.
Fig 5: Camshaft Cover Bolts
Courtesy of GENERAL MOTORS COMPANY
7. Loosely install the left camshaft cover bolts.
Fig 6: Camshaft Cover Bolt Tightening Sequence
Courtesy of GENERAL MOTORS COMPANY
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 7: Spark Plug Tube Guides
Courtesy of GENERAL MOTORS COMPANY
9. Remove the EN-46101  guide from the spark plug tubes of the left cylinder head.
Fig 8: Spark Plugs And Ignition Coils
Courtesy of GENERAL MOTORS COMPANY
10. Install the NEW spark plugs into the left cylinder head and tighten to 18 N.m (13 lb ft).
11. Inspect the inside of the ignition coil rubber boot for a thin, even coat of grease. If there is no grease present or additional grease is necessary, complete the following procedure:
    1. Apply a thin coating of dielectric grease evenly to the inside of the ignition coil rubber boot, up to a depth of 15 mm from the end of the boot. Refer to Adhesives, Fluids, Lubricants, and Sealers (LF4) .
    2. Remove any excess grease from around the end of the boot, and ensure there is not an excessive amount within the boot.
12. Install the ignition coils.
13. Install the ignition coil bolts and tighten to 10 N.m (89 lb in).