Chevrolet Silverado / GMC Sierra. Service manual — part 565

Fig. 147: View Of Piston Assembly
Courtesy of GENERAL MOTORS CORP.

9. Push piston assembly out of cylinder.

10. Reassemble the connecting rod bearing, cap, and bolts upon removal.

CAMSHAFT REMOVAL

Tools Required

J 7872 Dial Indicator Set

Removal

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 148: Measuring Camshaft End Play Using J 7872
Courtesy of GENERAL MOTORS CORP.

1. Measure the camshaft end play using J 7872 .

The production value is 0.050-0.114 mm (0.002-0.0045 in) and service limit is 0.20
mm (0.008 in).

Replace the camshaft or the camshaft thrust plate if the measured value exceeds the
service limit.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 149: Blocking Crankshaft From Turning Using Wooden Handle
Courtesy of GENERAL MOTORS CORP.

2. Block the crankshaft from turning with a wooden handle.

3. Loosen the camshaft gear bolt and leave the bolt finger tight.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 150: View Of Camshaft Exciter Ring, Bolts & Thrust Plate Bolts
Courtesy of GENERAL MOTORS CORP.

4. Remove the camshaft exciter ring bolts.

5. Remove the camshaft exciter ring.

IMPORTANT: The two piece cam gear must be bolted together to prevent

the spring tension from unloading upon removal.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado