TM 5-3805-258-24-2
ENGINE
13.
FUEL
Use the following
DISASSEMBLY AND ASSEMBLY
INJECTION PUMP HOUSING AND GOVERNOR
a)
b)
c)
procedure to put the No. 1
piston at top center on the compression stroke.
No. 1 piston at top center (TC) on the compres-
sion stroke is the starting point for all timing
procedures.
Loosen hose clamps (18), bolt (17) and
remove the breather from the valve cover.
Remove the plug from the flywheel hous-
ing.
Turn the crankshaft clockwise (as seen from
the front of the engine) until a 3/8”-16 NC
bolt (19) at least 2.5 in. long can be installed
in the flywheel through the hole in the fly-
wheel housing. Do not turn the crankshaft
counterclockwise.
NOTE: The rocker arms for No. 1 piston can be seen
through the breather hole in the valve cover.
d) Check to see if both rocker arms for the No.
1 piston can be moved backward and for-
ward by hand.
NOTE: The No. 1 piston is at top center on the
compression stroke when bolt (19) can be put in the
flywheel through the hole in the flywheel housing,
and both rocker arms for the No. 1 piston can be
moved backward and forward by hand.
e) If both rocker arms can not be moved by
hand, the No. 1 piston is not at top center
on the compression stroke. Remove bolt
(19) from the flywheel and turn the crank-
shaft clockwise one full turn (360°). In-
stall the timing bolt in the flywheel again.
Check to see if both rocker arms for the No.
1 piston can be moved backward and for-
ward by hand.
14. Remove the bolts and cover (20) from the fuel
pump housing.
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