8
7
2
9
8
10
TM 9-4940-568-34
5-101
If the timing pin is incorrectly
located on the gear housing, the
timing procedure will not ensure
that the pump is timed correctly.
(8)
After precisely locating TDC for Cylinder
No. 1, the factory positions the timing pin
(9) to the gear housing (8) using the timing
pin and the holes in the camshaft gear (2).
If the gear housing or timing pin assembly
are removed, the same precision is required
to relocate it. Refer to Para 5-6.
(9)
If timing pin (9) is incorrectly located,
reposition timing pin. Refer to Para 5-6.
NOTE
The marks on the gear housing
and the pump flange are unique
to each engine.
The flange of a replacement
pump must be marked to align
with the mark on the gear
housing after installation.
(10)
During production, after the locked pump is
fitted to the engine with Cylinder No. 1 at
TDC, a mark is stamped on the gear
housing (8) and pump flange (7).
Thereafter, when these marks are aligned,
the pump is correctly timed to the engine.
NOTE
If fuel injection pump is removed
from engine, perform Steps (11)
through (16) for timing fuel
injection pump.
(11)
Clean all debris from around fuel injection
pump timing window cover (10).
