B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Engine Noise Excessive -- Combustion Knocks
This is symptom tree T048.
Repair or replace the ether starting aids. Refer
Ether starting aid is malfunctioning
to the manufacturer's instructions.
Operate the engine from a tank of high-quality
fuel. Refer to the Operation and Maintenance
uel grade is not correct for the application, or
Manual, B Series Engines, Bulletin No.
the fuel quality is poor
Check for air in the fuel system. Bleed air from
ir in the fuel system
the system. Refer to Procedure 006-024.
Check the coolant level. Refer to Procedure
oolant temperature is above specification
Perform the automated cylinder performance
test. Replace injectors as necessary. Refer to
njector is malfunctioning
Measure and adjust the overhead settings.
verhead adjustments are not correct
Refer to Procedure 003-004.