B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Engine Difficult to Start or Will Not Start (No Exhaust Smoke) (Continued)
Inspect the fuel return lines for restrictions.
Fuel return restriction excessive
Refer to Procedure 006-012.
uel pump return overflow valve is malfunction-
Inspect the return overflow valve. Replace if
necessary. Refer to Procedure 006-044.
Put the engine at top dead center. Check and
adjust the fuel timing. Refer to Procedure
uel injection pump timing is not correct
005-013, 005-014, or 005-037.
Remove the fuel injection pump. Check the
uel injection pump is malfunctioning
Procedure 005-012 or 005-014.
amshaft timing is not correct (after engine
Check the gear train timing alignment. Refer to
rebuild or repair)