TM 5-3805-291-23-1
FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
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EXHAUST TEMPERATURE TEST
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N OT E
When engine runs at low idle, temperature of an exhaust manifold port can indicate the condition of a
fuel injection nozzle.
A low temperature indicates that no fuel is flowing to cylinder. An inoperative fuel injection nozzle or a
problem with fuel injection pump could cause this low temperature.
A very high temperature can indicate that too much fuel is flowing to cylinder. A malfunctioning fuel
injection nozzle could cause this very high temperature.
1.
Using thermometer, check exhaust temperature at each exhaust port of exhaust manifold.
2.
Close hood (TM 5-3805-291-10).
END OF WORK PACKAGE
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