Grand Caravan V6-3.3L VIN R (2005)
Camshaft: Service and Repair
REMOVAL
1. Remove the engine assembly from vehicle.
Remove the cylinder heads.
2. Remove the timing chain and camshaft sprocket.
3. Remove the hydraulic lifters. Identify each tappet for reinstallation in original location.
Fig.47
4. Remove camshaft thrust plate (Fig. 47).
5. Install a long bolt into front of camshaft to facilitate removal of the camshaft.
6. Remove the camshaft (Fig. 47), being careful not to damage cam bearings with the cam lobes.
NOTE: The camshaft bearings are serviced with the engine block.
INSPECTION
Fig.49
1. Check the cam lobes and bearing surfaces for abnormal wear and damage (Fig. 49). Replace camshaft as required.
NOTE: If camshaft is replaced due to lobe wear or damage, always replace the lifters.
2. Measure the lobe actual wear (unworn area - wear zone = actual wear) (Fig. 49) and replace camshaft if out of limit.
Standard value ......................................................................................................................................................................... 0.0254 mm (0.001 in.)
Wear limit ................................................................................................................................................................................. 0.254 mm (0.010 in.)
