effect in the pump distributor rotor. This causes a partial
(4) Start the engine as in (1) above. If the
loss in fuel pressure to the following injector, the nozzle
operation is still erratic, determine the
fails to open, and combustion does not occur in that
firing order (para. 4b) and replace injector
cylinder.
that injects immediately prior to fuel
injector found in (2) above.
b. On-Equipment Testing.
c. Removal. Remove the six fuel injectors from
(1) Start and operate engine at idle speed
the engine as instructed on figure 19.
(TM 5-3820-205-10/1).
d. Cleaning and Inspection. Clean and inspect all
(2) Momentarily loosen injector fuel line
assembly (fig, 5), on each injector in turn,
parts, Replace the gaskets and damaged parts.
note fuel injector where loosening of fuel
e. Installation. Install the fuel injectors on the
line assembly causes no effect on engine
engine in reverse of the instructions on figure 19.
operation.
f. Testing.
Warning: Keep hands away from
(1) Remove one fuel injector from the engine,
escaping fuel spray when loosening injector
leaving the fuel lines connected to the fuel
fuel line assemblies.
injection pump.
(3) Stop the engine and replace the injector
noted in (2) above.
Figure 13. Fuel primer and fuel filters, removal and installation.
AGO 8157A
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