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Chevrolet Silverado / GMC Sierra. Manual - part 2174
Fig. 209: View Of Installed Crankshaft Key
Courtesy of GENERAL MOTORS CORP.
2. Tap the key (122) into the keyway until both ends of the key bottom onto the crankshaft.
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. 210: View Of Crankshaft Sprocket
Courtesy of GENERAL MOTORS CORP.
3. Install the crankshaft sprocket (207) onto the front of the crankshaft. Align the crankshaft
key with the crankshaft sprocket keyway.
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. 211: 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.
5. Rotate the crankshaft sprocket until the alignment mark is 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
Fig. 212: View Of Compressed Tensioner
Courtesy of GENERAL MOTORS CORP.
6. 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
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