Camshaft Timing Drive Components Clean and Inspect
Camshaft Timing Drive ComponentsCleaning and Inspection
Cleaning Procedure
1. Clean all the following components with solvent:
^ Camshaft position actuator - exterior only
^ Camshaft position actuator oil control valve
^ Intermediate sprocket
^ Crankshaft sprocket
^ Primary timing chain
^ Secondary timing chains
^ Primary timing chain guide
^ Secondary timing chain guides
^ Primary timing chain shoe
^ Secondary timing chain shoes
^ Primary timing chain tensioner
^ Secondary timing chain tensioners
^ Timing component fastening bolts
Caution: Refer to Safety Glasses Caution in Service Precautions.
2. Dry the timing components with compressed air.
Visual Inspection
Camshaft Position Actuators
1. Inspect the front of the exhaust camshaft position actuators for the following:
^ Sprocket damage (1)
^ Loose or missing lock pin cover (2)
^ Reluctor/sensor wheel damage (3)
^ Camshaft position actuator oil control valve seating/sealing inner hub flange damage (4)
^ Blockage to the oil passages (5)
2. Inspect the back of the exhaust camshaft position actuators for the following:
^ Sprocket damage (1)
^ Camshaft locating pin hole (2)
^ Camshaft seating/sealing inner hub flange damage (3)
^ Blockage to the oil passages (4)
^ Loose or missing housing bolts (5)
3. Inspect the front of the intake camshaft position actuators for the following:
^ Sprocket damage (1)
^ Loose or missing lock pin cover (2)
^ Reluctor/sensor wheel damage (3)
^ Camshaft position actuator oil control valve seating/sealing inner hub flange damage (4)
^ Blockage to the oil passages (5)
4. Inspect the back of the intake camshaft position actuators for the following:
^ Sprocket damage (1)
^ Camshaft locating pin hole (2)
^ Camshaft seating/sealing inner hub flange damage (3)
^ Blockage to the oil passages (4)
^ Loose or missing housing bolts (5)
5. Replace a damaged camshaft position actuator.