TM 5-3805-280-24-2
Fuel System
35
Item
Measurement
Specification
8
Maximum Opening Pressure
Maximum Pressure Difference
700 kPa (7 bar) (100 psi)
Difference Between Cylinders
144
Fuel Injection Nozzle Tip
Spray Angle
Nozzle Valve/Seat Tightness
Leakage
Nozzle tip dry after 5 seconds.
Condition at Pressure Test of 2800--
(Slight dampness permissible on
3500 kPa (28--35 bar) (400--500
used nozzles.)
psi)
Fuel Injection Nozzle Return
Leakage
3--10 Drops/30 Seconds
Leakage at Pressure Test of 10300
kPa (103 bar) (1500 psi)
Fuel Injection Nozzle Tip Orifice
Number of Orifices Per Nozzle
4
Fuel Injection Nozzle Tip Orifice
ID
0.27 mm (0.0106 in.)
(Naturally Aspirated Engines)
Fuel Injection Nozzle Tip Orifice
ID
0.29 mm (0.0116 in.)
(Turbocharged Engines)1
Injection Nozzle Pressure Adjusting
10 Nm (7 lb-ft)
Screw Locknut
Fuel Injection Nozzle Valve Needle
Needle Lift (Based on Zero Lift)
3/4 Turn Counterclockwise
Lift
Fuel Injection Nozzle Lift Adjusting
5 Nm (3.5 lb-ft) (42 lb-in.)
Screw Lock Nut
Fuel Injection Nozzle Hold-Down
40 Nm (30 lb-ft)
Clamp Cap Screws
Fuel Leak-Off Hex Nut
5 Nm (3.7 lb-ft) (44 lb-in.)
Fuel Injection Nozzle Delivery Line
27 Nm (20 lb-ft)
1
In a few applications, "D" engine nozzles could be specified in a "T" or
"H" engine (verify part number on nozzle). In these cases, set the nozzle
to specifications as listed for "D" engine nozzles above.
DPSG,OUO1004,276 1920JUL983/3
13-387