ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0050 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
DIESEL ENGINE AND FUEL TANK ASSEMBLY
SERVICE/ADJUST
Fuel Injection Valve Service:
Parts (TM 10-4610-309-24P):
Nozzle gasket
Material:
Clean rags (WP 0079, Table 1, item 23)
Clean a clogged fuel injection valve as follows (see Figure 18):
WARNING
If the engine has been running, it may be hot enough to ignite any fuel that leaks
out during fuel system maintenance. Make sure that the engine and its parts are
cool to the touch before disassembling any part of the fuel system. Failure to
observe this warning can result in a fire and serious personal injury.
1. Remove the fuel injection valve from the engine. Refer to REPLACE and Fuel Injection Valve.
2. Check the fuel injection valve nozzle tip for carbon deposits.
NOTE
Carbon deposits build up on the nozzle in the form of flowers.
Flowering
significantly lowers combustion performance.
3. Clean the carbon deposits off of the nozzle tip, and especially around the four fuel injection ports,
by wiping the exterior with a clean rag.
FUEL INJECTION
VALVE
FUEL INJECTION PORTS (4) SPACED
NOZZLE SPACER SLEEVE
AROUND THE INJECTOR TIP
Figure 18. Fuel Injection Valve Nozzle Tip.
4. Reinstall the fuel injection valve. Refer to REPLACE and Fuel Injection Valve.
0050 00-22
