TIMING, GEAR TRAIN & FRONT COVER
Install the Timing Gear Train, Front Cover and
Vibration Damper as follows:
Reinstall crankshaft with new drive gear and
drive spline installed as follows: (Refer to Section
6 for crankshaft installation).
Remove the roll pin from the crankshaft and
press a new pin (1, Fig. 23) in its place, as
shown. Adhear to 1.78 mm (0.070 in.) pin
Figure 23. - Roll Pin Installation Diagram
Heat the new gear and spline evenly to
thermomelt stick (see tool list for number).
When the initial dull and chalky mark turns a
glossy liquid the desired temperature is reached.
NOTE: Pay no attention to color change when using
Using asbestos gloves, align the notch on
the rear of the gear with the roll pin in the
crankshaft. Slide the gear until it seats
against the crankshaft shoulder.
Slide the spline on the crankshaft until it
seats against the gear. Hold the gear and
spline until they cool sufficiently to hold in
Using a new gasket, install the crankshaft
front plate. Tighten bolts to 27 Nm (20 Ibf-ft)
Install the camshaft, camshaft gear and valve
tappets as described in Section 4.
NOTE: Check camshaft end play and be sure the
tappets move freely in their bores.
Install the idler gear as follows:
Assemble component parts as shown in
Figure 24. - Idler Gear and Component Parts Assembly
Install the assembly with the timing marks
facing out. Be sure the rear spacer (7, Fig.
24) is in position. A small amount of grease
will aid in holding the spacer.
Install and tighten the retaining bolt (1, Fig.
24)to 115 Nm (85 Ibf-ft) torque.
If the injection pump gear was removed install it
as follows: (For engines equipped w/UTDS*
Model 100 Fuel Injection Pump)
*United Technologies Diesel Systems
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