TIMING, GEAR TRAIN & FRONT COVER
If the injection pump gear was removed install it
as follows: (For engines equipped with Robert
Bosch Model MW Fuel Injection pump)
Be sure that engine crankshaft timing is set
at specified static timing prior to going any
loosely install injection pump drive gear to
injection pump meshing it with the idler
gear (1, Fig. 27b). Make sure drive gear is
positioned in gear slots (Fig. 27c) so it
allows for adjustment.
Align timing pointer (1, Fig. 27a) with timing
mark (2, Fig. 27a) by rotating injection
pump clockwise (as viewed from drive gear
NOTE: For engines equipped with Robert Bosch
Model MW Fuel Injection Pump the timing pointer is
located on the injection pump mounting adapter and
the timing mark is located on the drive hub.
Holding the pump shaft with a socket wrench (3,
Fig. 27b) torque drive gear bolts to 47 Nm (35
Rotate engine crankshaft counterclockwise 900
then rotate clockwise until pump timing pointer
and timing mark align.
Observe engine to injection pump timing on
crankshaft pulley (Fig. 27d). Refer to
specifications (introduction) for correct alignment
(or see Chart 1, Section 11, Page 16).
If the tachometer drive gear was removed,
proceed as follows: (UTDS* Model 100 Fuel
Insert the gear onto the dowel.
Slip the spacers over the mounting studs or
Place the thrust plate over the studs and gear.
Install and tighten nuts to 27 Nm (20 Ibf-ft)
Using a new gasket, install the crankcase front
-Full Front Cover-
(See Fig. 5)
For front covers with "ears" install the gasket as
shown in Fig. 28. DO NOT remove ears
Figure 28. - Front Cover Gasket (Rear View)
- Earless Front Cover -
(See Fig. 6)
When the gasket (Fig. 28) is used on
"earless" front cover applications, install
the gasket and front cover then remove the
ears (shaded areas on Fig. 28).
NOTE: If the "EARS" are removed prior to
installation, gasket misalignment may result:
NOTE: Improper front cover installation will result in
cover distortion or loose engine mounting bolts.
*United Technologies Diesel Systems
PRINTED IN UNITED STATES OF AMERICA