Installation Procedure
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Courtesy of GENERAL MOTORS COMPANY
Coat the intake camshaft with lubricant. Refer to Adhesives, Fluids, Lubricants, and Sealers (Europe L5Q)Adhesives, Fluids, Lubricants, and Sealers (North America L5Q) .
- Install the intake camshaft in the cylinder head.
- Ensure that the camshaft notch at the front of the camshaft is in the 12 O'clock position before installing the camshaft caps.
- Lubricate the 5 camshaft bearing caps (2, 4) and the 10 camshaft bearing cap bolts (1, 3). Refer to Adhesives, Fluids, Lubricants, and Sealers (Europe L5Q)Adhesives, Fluids, Lubricants, and Sealers (North America L5Q) .
- Install the camshaft bearing cap (4).
- Install the camshaft bearing front cap (2).
- Loosely install the 10 camshaft bearing cap bolts (1, 3) by hand.
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Courtesy of GENERAL MOTORS COMPANY
Pre-Tighten the camshaft bearing cap bolts in sequence as shown to 6 N.m (53 lb in)
- Repeat pre-tightening until all bolts keep the torque of 6 N.m (53 lb in) and the gap at bearing cap is closed.
- Tighten the bearing cap bolts in sequence as shown to 12 N.m (106 lb in).
- Install the camshaft position actuator. Refer to Camshaft Position Actuator Replacement .
NOTE:
Observe the markings on the bearing caps. Each bearing cap is market in order to identify its location. Ensure the caps are installed in the original location and position.