Chevrolet Silverado / GMC Sierra. Manual — part 2046
Fig. 59: View Of Crankshaft Sprocket & Installer
Courtesy of GENERAL MOTORS CORP.
4. Use the J 41478 (1) and the J 41665 (2) in order to install the crankshaft sprocket. See
Special Tools . Install the sprocket onto the crankshaft until fully seated against the
crankshaft flange.
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. 60: View Of Compressed Tensioner
Courtesy of GENERAL MOTORS CORP.
5. 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. 61: View Of Timing Chain Tensioner
Courtesy of GENERAL MOTORS CORP.
6. Install the timing chain tensioner (232) and bolts (231).
Tighten: Tighten the bolts to 25 N.m (18 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. 62: View Of Camshaft Sprocket & Timing Chain
Courtesy of GENERAL MOTORS CORP.
7. Position the camshaft sprocket (205) so the timing mark is in the 6 o'clock position.
8. Install the camshaft sprocket (205), timing chain (208), and bolt (206).
IMPORTANT:
The sprocket teeth and timing chain must mesh.
The camshaft and the crankshaft sprocket alignment
marks MUST be aligned properly.
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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