Installation Procedure
WARNING: This page is about a different variant/trim than selected.
- Lubricate the camshaft journals and the bearings with clean engine oil.
- Install the camshaft sprocket bolt into the camshaft front bolt hole.
- Remove the bolt from the front of the camshaft.
- Install the camshaft retainer (203) and bolts (204). Install the retainer with the sealing gasket facing the engine block.
- Tighten the camshaft retainer bolts.
- Tighten the first design hex head bolts (3) to 25 N.m (18 lb ft).
- Tighten the second design TORX® head bolts (4) to 15 N.m (11 lb ft).
CAUTION:Refer to Fastener Caution .
- Compress the timing chain tensioner guide and install the EN 46330 timing belt tensioner retaining pin.
- Install the timing chain tensioner (232) and left side bolt (231). Do not install the right side bolt at this time. The right side bolt will be installed after the camshaft position (CMP) actuator and chain have been installed onto the engine.
- Properly locate the CMP actuator onto the locating pin of the camshaft.
- The sprocket teeth and timing chain teeth must mesh.
- The camshaft and the crankshaft sprocket alignment mark MUST be aligned properly.
- Do not use the CMP solenoid valve again. Install a NEW valve during assembly.
- Identify the alignment hole (1) in the rear face of the CMP actuator and the locating pin (2) on the front face of the camshaft.
- Install the CMP actuator and timing chain. Align the hole in the rear face of the CMP actuator with the locating pin on the front face of the camshaft. If necessary, rotate the camshaft or crankshaft sprockets in order to align the timing marks. Use care to install the actuator completely onto the front of the camshaft. Position fingers onto the face of the actuator sprocket and push the actuator onto the front of the camshaft. Never push on the reluctor wheel when attempting to install the actuator.
- Place a straight edge across the front face of the engine block and inspect for proper installation of the CMP actuator and timing chain. With the CMP actuator properly and completely installed onto the front of the camshaft, the timing chain will not protrude beyond the front face of the engine block.
- Install a NEW CMP actuator solenoid valve (234). With the CMP actuator properly positioned onto the camshaft, the CMP actuator solenoid valve can be threaded completely into the camshaft using light hand pressure. Tighten by hand until snug.
- Inspect the sprockets for proper alignment. The mark on the CMP actuator sprocket (1) should be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be located in the 12 o'clock position.
- Install the right side bolt (231) into the timing chain tensioner and tighten both bolts to 30 N.m (22 lb ft).
- Remove the EN 46330 timing belt tensioner retaining pin.
- Tighten the CMP actuator solenoid valve.
- Tighten the valve a first pass to 65 N.m (48 lb ft).
- Tighten the valve a final pass to 90 degrees using J 45059 angle meter.
- Remove the J 42386-A flywheel holding tool.
- Install the starter motor. Refer to Starter Replacement (L99, LS3, LSA, LS7)
- Install the oil pump, screen, and crankshaft oil deflector. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement (L99, LS3,LSA) .
- Install the valve lifters. Refer to Valve Lifter Replacement (Without AFM) Valve Lifter Replacement (With AFM) .
- Install the radiator support.
NOTE:
Using the bolt as a handle, carefully install the camshaft into the engine block.
NOTE:
The gasket surface on the engine block should be clean and free of dirt and/or debris.
NOTE:
WARNING:
Refer to Camshaft Position Actuator Removal and Installation Warning .
NOTE:
If camshaft replacement is required, the valve lifters must also be replaced.