TM 9-4310-397-14
(3)
Position a new carbon stop seal (2) on pilot tool and push on to nozzle body using No. 16189 Nozzle
Protector Cap (found on all repair nozzles). Work seal into groove on nozzle body.
(4)
If nozzle is not going to be installed at this time, install a No. 16189 nozzle protector cap over nozzle tip.
Plug all other openings in nozzle to prevent contamination.
(5)
Remove plug (if installed previously) from nozzle bore in cylinder head and blow out bore with compressed
air.
(6)
Before installing injection nozzles, make sure nozzles are clean and free from oil or grease. Do not grease
or oil the nozzles.
(7)
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. Dirt and roughness could prevent proper sealing and cause distortion to nozzle
when the attaching screw is tightened, making the valve stick.
(8)
Install nozzle in cylinder head using a slight twisting motion as nozzle is seated.
NOTE
Figure 6-12 shows relationship of parts required for installation.
(9)
Install spacer (3), clamp and cap screw (4). Do not tighten cap screw at this stage.
(10)
Connect fuel pressure line (5) to nozzle. Leave connection slightly loose until air is bled from system.
(11) Tighten nozzle hold-down cap screws (4) 23 ft-lb (30 Nm).
(12)
Install leak off line assemblies using new rubber packing (6) (item 47, appendix H) at nozzle packing nut
(7) and new rubber packing (8) (item 48, appendix H) at tee (9) packing nuts (10). Do not overtighten
packing nuts.
(13) Install engine per para 4-72.
6-13
