Sakai SW800-II, Shop Manual

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10-021
TROUBLESHOOTING
2-3-2. Engine will not start (But starter motor runs)
In case of engine will not start while starter motor runs, generally trouble is caused by that fuel is not
supplied, supply amount of fuel is extremely low, or selection of fuel is not appropriate.
Check that fuel is supplied to inlet of fuel pump.
Reference Fig.: 2-3-2
Check point Check/Cause Action
1. Fuel Tank Check that fuel tank is filled with diesel oil.
If quantity is low, fuel is not delivered to fuel system.
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•
Fill tank with fuel.
Check that there is no water has entered fuel tank.
If water has entered tank, engine does not start.
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•
Drain water from tank.
Check that quality of diesel oil is sufficient.
If oil does not meet standard, engine may fail.
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•
Replace fuel in tank with
an appropriate one.
2. Fuel Prefilter
(with sedimenter),
Fuel Filter
Check that water in sedimenter is not above upper limit.
If amount of water exceeds limit, engine does not start.
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•
Drain water.
Check filter for clogging.
Insufficient supply of proper fuel due to clogging of filter.
(NOTICE)
Air bleeding should be performed whenever filter is
replaced.
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•
Replace filter.
Bleed filter.
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3. Fuel Supply Pump Disconnect hose connecting to fuel supply pump and
check that fuel flows out of pump.
If fuel does not flow out of pump, it is not delivered to fuel
system.
(NOTICE)
Air bleeding should be performed whenever fuel
supply pump is replaced.
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•
•
Replace fuel supply
pump.
Bleed pump.
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•
4. Hoses Connecting
Between Parts
Check hose between fuel tank and fuel filter for fuel
leakage and clogging.
Hose failure due to deterioration
(NOTICE)
Air bleeding should be performed whenever fuel hose
is replaced.
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•
Replace hose.
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