TM 5-3805-280-24-2
Fuel System
INSTALL FUEL INJECTION NOZZLES
35
80
IMPORTANT: Before installing injection nozzles, make
sure nozzles are clean and free from oil
or grease.
NOTE: If nozzle bore in cylinder head must be cleaned,
use JDE39 Nozzle Bore Cleaning Tool. (See
REMOVE FUEL INJECTION NOZZLES earlier in
this group.)
1. Remove plug (if installed previously) from nozzle bore
in cylinder head and blow out bore with compressed
air.
NOTE: Make sure that the sealing surface of the cylinder
head (on which the seal washer will be resting) is
smooth and free of damage or dirt. This could
prevent proper sealing. Dirt and roughness could
also cause nozzle to be distorted when the
attaching screw is tightened, making the valve
stick.
2. Install nozzle with spacer and clamps in cylinder head
using a slight twisting motion as nozzle is seated in
bore. Illustration shows relationship of parts required
for proper installation.
3. Align nozzle clamps and install cap screw. Do not
tighten cap screw at this stage.
4. Connect fuel pressure line to nozzle. Leave connection
slightly loose until air is bled from system.
5. Tighten nozzle hold-down clamp cap screws to
specifications.
Fuel Injection Nozzle Hold-Down Clamp Cap Screws--Specification
Torque ............................................................................. 40 Nm (30 lb-ft)
6. Install leak-off line assembly.
Fuel Leak-Off Hex Nut--Specification
Torque .............................................................. 5 Nm (3.7 lb-ft) (44 lb-in.)
Continued on next page
RG,35,JW7632
1921NOV971/2
13-459
