Removal Procedure
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the camshaft cover. Refer to Camshaft Cover Replacement .
- Remove the spark plugs. Refer to Spark Plug Replacement .
- Rotate the crankshaft clockwise and install the camshaft actuator retainer EN-48953 (1). See Special Tools .
- Install the camshaft actuator retainer bolts and tighten to 10 N.m (89 lb in).
- Loosen, but do not remove the exhaust camshaft actuator bolt.
- Clean the timing chain and gears with solvent.
- Mark the intake and exhaust camshaft actuators and the respective locations on the timing chain.
- Remove the upper timing chain guide bolts and guide.
- Remove the timing chain tensioner.
- The camshaft actuators should not rotate during the removal or installation.
- Ensure the tips of the EN-48749 are fully engaged into the timing chain. See Special Tools . The retention tool rod can be used on the back side of the chain to ensure the teeth from the retention tool are engaged.
- Install the timing chain retention tool EN-48749 (1) to the exhaust side of the timing chain. See Special Tools .
- Remove and discard the exhaust camshaft actuator bolt (2).
- Remove the exhaust camshaft actuator (3) from the camshaft while also removing the actuator from the timing chain.
CAUTION:
Refer to Fastener Caution
.
NOTE:
Ensure the timing chain and the camshaft position actuators are marked for proper assembly.
NOTE: