1
2
HOLE
TM 9-4940-568-34
7-74
7-9. FRONT GEAR HOUSING REPLACEMENT (CONT).
d.
Relocating The Timing Pin.
NOTE
If gear housing removed during
removal was reinstalled proceed
to Follow-On Maintenance.
If new gear housing was installed
perform Steps (3) through (14).
The location of the timing pin
assembly on the gear housing is
critical for correct engine
adjustments. Follow this
procedure to install the assembly
so that it corresponds to Top
Dead Center (TDC), for Cylinder
Number 1.
(1)
Remove the injector nozzles from all of the
cylinders (TM 9-4940-568-20). This step is
important to vent the cylinders so the
crankshaft can be rotated smoothly to
located TDC for Cylinder Number 1.
(2)
Temporarily install crankshaft pulley (1) and
four screws (2).
(3)
Verify that the No. 1 cylinder is at or near
TDC on the compression stroke by rotating
the crankshaft until the engine timing pin
hole is visible through the gear housing.
(4)
Install the rocker lever, pedestal assembly for
Cylinder Number 1 (TM 9-4940-568-20).
