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Chevrolet Silverado / GMC Sierra. Manual - part 2050
Fig. 74: Identifying Camshaft Retainer Bolts
Courtesy of GENERAL MOTORS CORP.
6. Tighten the camshaft retainer bolts.
Tighten:
Tighten the first design hex head bolts (3) to 25 N.m (18 lb ft).
Tighten the second design TORX® head bolts (4) to 15 N.m (11 lb ft).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 75: View Of Compressed Tensioner
Courtesy of GENERAL MOTORS CORP.
7. Compress the timing chain tensioner guide and install the EN 46330 . See Special Tools .
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 76: View Of Camshaft Sprocket & Timing Chain
Courtesy of GENERAL MOTORS CORP.
8. Align the camshaft sprocket so the timing mark is in the 6 o'clock position.
9. Install the camshaft sprocket (205), timing chain (208), and bolt (206).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 77: Identifying Camshaft & Crankshaft Marks
Courtesy of GENERAL MOTORS CORP.
10. Inspect the sprockets for proper alignment. The marks on the camshaft sprocket (1) should
be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be
located in the 12 o'clock position.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
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