Volvo Penta TAD1630G Workshop Manual page 159

Group 22
Starter motor turns over as usual but engine does not start
CAUSE
•
Air in fuel system
•
No fuel
– fuel cocks closed
– fuel tank empty
– fuel filters clogged (due to contaminants/kerosene
precipitation in the fuel as a result of low outside
temperature)
•
Stop solenoid/fuel shut off valve connected/ seizing
•
Insufficient preheating
– incorrect starting procedure
– starter heater is not engaged
•
Blocked combustion air intake
2. Engine starts but stops again or runs unevenly
CAUSE
•
Air in fuel system
•
No fuel
– fuel cocks closed
– fuel tank empty
– fuel filters clogged (due to contaminants/kerosene
precipitation in the fuel as a result of low outside temperature) Bleed the system. See "Fuel system, bleeding".
•
Stop solenoid/fuel shut off valve connected/ seizing
ing position
•
Insufficient preheating
– incorrect starting procedure
– starter heater is not engaged
REMEDY
Bleed the fuel system, see "Fuel system, bleeding".
Open the fuel cocks
Fill with fuel
Fit new fuel filters (pre-filters and/or fine filters).
Bleed the system. See "Fuel system, bleeding".
Check that stop solenoid/fuel shut off valve is in operating
position
Try start again as shown in the Instruction Book
Check that none of the semi-automatic fuses has tripped
(position 5 in engine wiring diagram). Reset the fuse by
pressing the button.
Check the electrical cables, the interlock button and the re-
lay for the starter heater. Insufficient air flow to engine.
Check air intake for blockage.
REMEDY
Bleed the fuel system. See "Fuel system, bleeding".
Open the fuel cocks.
Fill with fuel.
Fit new fuel filters (pre-filters and/or fine filters).
Check that the stop solenoid/fuel shut off valve is in operat-
Try start again as shown in the Instruction Book
Check that none of the semi-automatic fuses has tripped (po-
sition 5 in engine wiring diagram). Reset the fuse by pressing
the button.
Check the electrical cables, the interlock button and the relay
for the starter heater. Insufficient air flow to engine
Troubleshooting
157