TM 5-3810-300-24&P-3
Fuel Injector 2.1.1
and the cylinder head is maintained. Pack the flutes of the
reamer with grease to retain the carbon removed from the
CAUTION: On four valve cylinder heads,
tube.
there is a possibility of damaging the
exhaust valves if the exhaust valve bridge is
Be sure the fuel injector is filled with fuel oil. If necessary, add
not resting on the ends of the exhaust valves
clean fuel oil at the inlet filter cap until it runs out of the outlet
when tightening the rocker shaft bracket
filter cap.
bolts. Therefore, note the position of the
exhaust valve bridge before, during and after
Install the injector in the engine as follows:
tightening the rocker shaft bolts.
1. Refer to Fig. 6 and insert the injector into the injector tube
5. Remove the shipping caps. Then install the fuel pipes and
with the dowel pin in the injector body registering with the
connect them to the injector and the fuel connectors. Use
locating hole in the cylinder head.
socket J 8932-41 to tighten the connections to 12-15 lb-ft (16-
20 Nm) torque.
2. Slide the injector rack control lever over so that it registers
with the injector rack.
CAUTION: Do not bend the fuel pipes and
do not exceed the specified torque.
3. Install the injector clamp, special washer (with curved side
Excessive tightening will twist or fracture the
toward injector clamp) and bolt. Tighten the bolt to 20-25 lb-ft
flared end of the fuel line and result in leaks.
(27-34 Nm) torque. Make sure that the clamp does not
Lubricating oil diluted by fuel oil can cause
interfere with the injector follower spring or the exhaust valve
serious damage to the engine bearings.
springs.
6. Perform a complete engine tune-up as outlined in Section
NOTE: Check the injector control rack for
14. However, if only one injector has been removed and
free movement. Excess torque can cause
replaced and the other injectors and the governor adjustment
the control rack to stick or bind.
have not been disturbed, it will only be necessary to adjust the
valve clearance and time the injector for the one cylinder, and
4. Move the rocker arm assembly into position and secure the
to position the injector rack control lever.
rocker arm brackets to the cylinder head by tightening the
bolts to the torque specified in Section 2.0.
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