TM 9-6115-729-24
0114
REMOVAL
1. Remove two oil drain plugs (Figure 1, Item 1) and O-rings (Figure 1, Item 2). Allow engine oil to drain from
the ports in the cylinder head (Figure 1, Item 3).
2. Disconnect unit injector harness connector from unit injector (Figure 1, Item 4).
3. Remove shoulder bolt (Figure 1, Item 5), bolt (Figure 1, Item 6), and deflector (Figure 1, Item 7).
CAUTION
Do not pry up on unit injector at locations A or B. Pry up gently at location C only on the flywheel
side of the unit injector or unit injector will be damaged.
4. Gently pry up on both sides of unit injector (Figure 1, Item 4) at location C on flywheel side of injector only and
remove unit injector (Figure 1, Item 4).
5. Remove seal (Figure 1, Item 8), backup ring (Figure 1, Item 9), seal (Figure 1, Item 10), seal (Figure 1, Item
11), backup ring (Figure 1, Item 12), and backup ring (Figure 1, Item 13) from unit injector (Figure 1, Item 4).
6. Repeat steps 4 thru 7 for remaining unit injectors (Figure 1, Item 4).
END OF TASK
INSTALLATION
1. Install backup ring (Figure 1, Item 13), backup ring (Figure 1, Item 12), seal (Figure 1, Item 11), seal (Figure 1,
Item 10), backup ring (Figure 1, Item 9), and seal (Figure 1, Item 8) on unit injector (Figure 1, Item 4).
2. Lubricate seals and backup rings (Figure 1, Item 8) thru (Figure 1, Item 13) with engine oil.
3. Clean unit injector seating surface on cylinder head (Figure 1, Item 3).
CAUTION
Do not strike unit injector with hammer. Push injector firmly straight into the injector bore by hand
only or unit injector will be damaged. To avoid damaging the injector, do not use shoulder bolt or
side pressure to seat injector.
4. Push unit injector (Figure 1, Item 4) straight into injector bore with the hand on top of the injector solenoid.
5. Install deflector (Figure 1, Item 7), bolt (Figure 1, Item 6), and shoulder bolt (Figure 1, Item 5). Torque bolt
(Figure 1, Item 6) to 79-133 lb-in (9-15 Nm). Torque shoulder bolt (Figure 1, Item 5) to 45-63 lb-in (5-7 Nm).
6. Connect unit injector harness connector to unit injector (Figure 1, Item 4).
7. Repeat steps 1 thru 6 for remaining unit injectors (Figure 1, Item 4).
0114-2
