Replace/Repair Fuel Injector Group. (FIGURES 2-38 and 2-39)

TM 55-1905-223-24-4

2-39. Replace/Repair Fuel Injector Group. (FIGURES 2-38 and 2-39)

This task covers:

a. Removal,

b. Repair,

c. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's

Engine secured and tagged "Out of

rail and marine diesel engines,

Service" (TM 55-1905-223-10).

Battery banks disconnected.

Injector puller PIN 3822482

Fuel drained from lines.

Deepwell socket 5120-01-113-8087

Torque wrench kit P/N 3377216

Materials/Parts

Banjo connector seal P/N 3903380

Fuel injector assembly P/N 3911185

Injector P/N 3802061

Gasket P/N 3909356

Sealing washer P/N 3900808

Warning tags, Item 21, Appendix C

REMOVAL

a. Clean around the injectors.

b. Remove the clamps to the air crossover tube. Remove tube from turbocharger (para. 2-26).

Disconnect the fuel supply lines (para. 2-30).

d. Disconnect the fuel drain manifold banjo connector seal (5, FIGURE 2-38).

e. Loosen hold down nut (2) using a 24mm deep well socket, remove injector (3).

Remove and discard gasket (1).

g. Remove and discard sealing washer (4).

NOTE

When rust has formed on the hold down nut, the injector can turn in the

bore when nut is loosened. This will cause severe damage to the head

by the injector locating ball cutting a groove in the bore. Soak the hold

down nut with rust penetrating solvent for a minimum of 3 minutes.

Change 1

2-99