TM 5-3805-260-24
REMOVING CARBON DAM
1. Fuel injection nozzle. 2. Csrbon dam. 3.
Seal. Remove carbon dam (2) with needle
nose pliers and remove seal (3) from the
nozzle.
CAUTION
Do not use a steel brush or a wire wheel to
clean the nozzle body or the nozzle tip. Use of
these tools can cause a small reduction of
orifice size, and this will cause a large
reduction in engine horsepower. Too much
use of the 8S2258 Brass Wire Brush will also
remove the coating that is on the nozzle for
protection.
Clean the groove for carbon seal dam (2) and
the body of the nozzle below the groove with the 8S2258
Brass Wire brush (M). Remove the carbon, but be sure
not to use the brush enough to cause damage to the
body of the nozzle.
NOTE: A change in color in the area below the groove is
normal and does not affect the body of the nozzle.
8S2245 CLEANING KIT
(M) 8S2258 Brass Wire Brush. (N) 8S2252 Carbon
Seal Tool. (P) 8S2250 Nozzle Holding Tool.
I.
Return Leakage Test
1. Put nozzle (I) and 8S2250 Nozzle Holding
Tool (P) in a vise and remove cap (4).
FUEL INJECTION NOZZLE
4. Cap. 5. Nut.
2.
Use 5P4244 Adapter (Q) to connect fuel
injection nozzle (I) to the tester. Nut (5) can be tightened
by hand if IH1023 O-ring Seal (6) is not damaged.
3.
Install FT1384 Extension (R) in 8S2270
Fuel Collector (S) and put parts into position under
nozzle.
FUEL INJECTION NOZZLE CONNECTOR 5.
Nut. 6. 1H1023 O-ring Seal for fuel line.
4.
Put the tip of the fuel injection nozzle a little
above the horizontal position. Tighten the
nut by hand that connects the fuel injection
nozzle to the tester.
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