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Chevrolet Silverado / GMC Sierra. Manual - part 2211
Courtesy of GENERAL MOTORS CORP.
3. Install the engine flex plate bolts.
Tighten:
1. Tighten the engine flex plate bolts (1-6) a first pass in sequence to 20 N.m (15 lb ft).
2. Tighten the engine flex plate bolts (1-6) a second pass in sequence to 50 N.m (37 lb
ft).
3. Tighten the engine flex plate bolts (1-6) a final pass in sequence to 100 N.m (74 lb ft).
CRANKSHAFT BALANCER INSTALLATION
Tools Required
J 41478 Crankshaft Front Oil Seal Installer. See Special Tools .
J 41665 Crankshaft Balancer and Sprocket Installer. See Special Tools .
J 42386-A Flywheel Holding Tool. See Special Tools .
J 45059 Angle Meter
Installation
NOTE:
Refer to Fastener Notice .
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. 94: View Of Special Tool & Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE:
Refer to Fastener Notice .
IMPORTANT:
The crankshaft balancer is balanced as an individual
component. It is not necessary to mark the balancer
prior to removal.
The crankshaft balancer installation and bolt tightening
involves a 4 stage tightening process. The first pass
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
1. Install the J 42386-A (1) and bolts. See Special Tools .
Use 1 M10 - 1.5 x 120 mm and 1 M10 - 1.5 x 45 mm bolt for proper tool operation.
Tighten: Tighten the J 42386-A bolts to 50 N. See Special Tools .m (37 lb ft).
ensures that the balancer is installed completely onto
the crankshaft. The second, third, and fourth passes
tighten the NEW bolt to the proper torque.
The used crankshaft balancer bolt is used only during
the first pass of the balancer installation procedure.
Install a NEW crankshaft balancer bolt and tighten as
described in the second, third, and fourth passes of the
balancer bolt tightening procedure.
Ensure the teeth of the tool engage the engine flywheel
teeth.
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. 95: View Of Crankshaft Balancer
Courtesy of GENERAL MOTORS CORP.
2. Position the balancer (138) onto the end of the crankshaft.
IMPORTANT: The balancer should be positioned onto the end of the
crankshaft as straight as possible prior to tool installation.
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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