Chevrolet Silverado / GMC Sierra. Service manual — part 150

Fig. 503: Proper Indicator Positioning
Courtesy of GENERAL MOTORS CORP.

19. The tip of the indicator should be positioned above and NOT in contact with the cap end of

the connecting rod.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 504: Swivel Base Fine Adjustment Knobs
Courtesy of GENERAL MOTORS CORP.

20. Rotate the fine adjustment knobs on the dial indicator end of the swivel base to position the

tip of the indicator in contact with the connecting rod.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 505: Actuating Pivot Arm Assembly Handle
Courtesy of GENERAL MOTORS CORP.

21. Lightly actuate the handle of the pivot arm assembly, multiple times in both directions, to

ensure the oil film is removed from the journal.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 506: Dial Indicator
Courtesy of GENERAL MOTORS CORP.

22. Load the handle in the forward position and zero the dial indicator. Load the handle

multiple times in both directions and record the reading.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado