INSTALLATION
1. Install slave cylinder (1) onto transmission (3) and
tighten bolts to 22 N·m (200 in. lbs.).
2. Install transmission assembly.
3. Connect hydraulic line to slave cylinder.
4. Bleed the system.
FLYWHEEL
DESCRIPTION
STANDARD FLYWHEEL
The standard (3) is a heavy plate bolted to the rear of
the crankshaft (1). The flywheel incorporates the ring
gear (2) around the outer circumference to mesh with
the starter to permit engine cranking. The rear face of
the flywheel serves as the driving member to the
clutch disc.
DUAL MASS FLYWHEEL
The Dual Mass Flywheel is used on the 5.9L Diesel
engine with G56 transmission. The flywheel incorpo-
rates the ring gear around the outer circumference to
mesh with the starter to permit engine cranking. The
primary flywheel side is bolted to the crankshaft. The
secondary flywheel side serves as the driving member
to the clutch disc. Internal springs between the fly-
wheels are use to dampen energy. The Dual Mass
Flywheel is serviced as an assembly only and should never be taken apart.
DIAGNOSIS AND TESTING
FLYWHEEL
Check flywheel runout whenever misalignment is suspected. Flywheel runout should not exceed 0.08 mm (0.003
in.). Measure runout at the outer edge of the flywheel face with a dial indicator. Mount the indicator on a stud
installed in place of one of the flywheel bolts.
Common causes of runout are:
•
heat warpage
•
improper machining
•
incorrect bolt tightening
•
improper seating on crankshaft flange shoulder
•
foreign material on crankshaft flange
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CLUTCH
DR/DH