Chevrolet Silverado / GMC Sierra. Service manual — part 604

10. Install the original connecting rod cap bolts for the plastic gauging. NEW bolts will be used

for final assembly.

11. Tighten the bolts in three steps.

Tighten:

1. 1st step 64 N.m (47 lb ft)

2. 2nd step 30 degrees using J 45059

3. 3rd step 30 degrees using J 45059

12. Remove the connecting rod cap bolts.

13. Compare the width of the gauging plastic with the scale printed on the gauging plastic

container. The connecting rod bearing clearance should be 0.10 mm (0.0039 in).

14. Discard the original connecting rod bolts once the plastic gauging is completed. NEW

connecting rod bolts will be used for final assembly.

15. Carefully clean the gauging plastic from the bearing surface and the crankpin.

16. Lubricate the connecting rod bearing inserts with engine oil.

17. Install the connecting rod caps with the stamped cylinder number aligned with the stamped

cylinder number on the connecting rods.

18. Install NEW connecting rod cap bolts.

19. Tighten the connecting rod cap bolts in three steps.

Tighten:

1. 1st step 64 N.m (47 lb ft)

2. 2nd step 30 degrees using J 45059

3. 3rd step 30 degrees using J 45059

PISTON OIL COOLING NOZZLE INSTALLATION

NOTE:

Refer to Fastener Notice .

NOTE:

This component uses bolts with a preapplied molybdenum
disulfide coating for thread lubrication. Do not remove the
coating or use any additional lubricant. Improperly lubricated
threads will adversely affect the bolt torque and clamp load.
Improper bolt torque and clamp load can lead to engine
damage.

2008 Chevrolet Silverado 1500

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

Fig. 97: View Of Piston Oil Cooling Nozzle
Courtesy of GENERAL MOTORS CORP.

1. Install the piston oil cooling nozzle.

2008 Chevrolet Silverado 1500

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

Fig. 98: Aligning Oil Cooling Nozzle
Courtesy of GENERAL MOTORS CORP.

NOTE:

The piston oil cooling nozzle must be aligned to direct oil
towards the oil inlet hole on the bottom of the piston. Improper

2008 Chevrolet Silverado 1500

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

2. Install the piston oil cooling nozzle bolt.

Tighten: Tighten the piston oil cooling nozzle bolts to 21 N.m (15 lb ft).

OIL PUMP INSTALLATION

Fig. 99: View Of Oil Pump, Bolts & O-Ring

alignment of the piston oil cooling nozzle will allow insufficient
oil lubrication to the piston and cause severe engine damage.

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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