TM 5-3810-300-24&P-3
Fuel Injector 2.1.1
ASSEMBLE INJECTOR
Assemble Rack and Gears
Use an extremely clean bench to work on and to place the
Refer to Fig. 36 and note the drill spot marks on the control
parts when assembling an injector. Also be sure all of the
rack and gear. Then proceed as follows:
injector parts, both new and used, are clean.
1. Hold the injector body, bottom end up, and slide the rack
through the hole in the body. Look into the body bore and
Study Figs. 34 through 37 for the proper relative position of
the injector parts, then proceed as follows:
move the rack until you can see the drill marks. Hold the rack
in this position.
Assemble Injector Filters
2. Place the gear in the injector body so that the marked tooth
is engaged between the two marked teeth on the rack (Fig.
Always use new filters and gaskets when reassembling an
injector.
3. Place the gear retainer on top of the gear.
1. Insert a new filter, dimple end down, slotted end up, in each
of the fuel cavities in the top of the injector body (Fig. 35).
4. Align the locating pin in the bushing with the slot in the
injector body, then slide the end of the bushing into place.
NOTE: Install a new filter in the inlet side
(located over the injector rack) in a fuel
Assemble Spray Tip, Spring Cage and Check Valve
injector with an offset body. No filter is
Assemblies
required in the outlet side of the offset body
injector (Fig. 34).
Refer to Fig. 36 and assemble the parts as follows:
2. Place a new gasket on each filter cap. Lubricate the
threads and install the filter caps. Tighten the filter caps to 65-
75 Ib-ft (88-102 Nm) torque with a 9/16" deep socket (Fig. 23).
3. Purge the filters after installation by directing compressed
air or fuel through the filter caps.
4. Install clean shipping caps on the filter caps to prevent dirt
from entering the injector.
Fig. 41 Installing Injector Follower Stop Pin
Fig. 42 Checking Injector Spray Tip Concentricity
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