Troubleshooting
Group 22
158
•
Insufficient air flow to engine
– air filter blocked
Fit new air filter or clean the air filter. Check ventilation to
engine room.
•
Faulty injectors
Check/replace injector(s).
3. Coolant temperature too high
CAUSE
REMEDY
•
Coolant level in engine too low (air in system)
Fill the engine with coolant and vent the system See “Cool-
ant, filling”.
•
Faulty thermostat
Install a new thermostat
•
Clogged radiator and/or charge air cooler (TAD)
Clean See “Cleaning cooling system”.
•
Faulty circulation pump
Overhaul/replace the circulation pump.
•
Faulty temperature gauge/sensor
Check/replace temperature gauge/sensor
•
Faulty setting of injection angle
Check/adjust the injection angle.
4. Coolant temperature too low
CAUSE
REMEDY
•
Faulty thermostat
Install a new thermostat
5. Engine does not reach correct speed at wide open throttle
CAUSE
REMEDY
•
Engine overloaded
If possible reduce the load
•
Insufficient fuel flow
– fuel filters clogged (due to contaminants/kerosene
Fit new fuel filters (pre-filters and/or fine filters).
precipitation in the fuel as a result of low outside temperature) Bleed the system. See “Fuel system, bleeding”.
•
Water in fuel
Clean fuel tank. Drain water from pre-filter, if any.
•
Insufficient air flow to engine
– faulty injector(s)
Fit new air filter/clean air filter
– air leak between turbo and engine’s inlet manifold
Check the rubber hose between turbo and the connecting
pipe, plus other connections. Tighten the hose clips.
– faulty turbo charger
Clean the compressor assembly. Overhaul the turbo com-
pressor if needed.
– poor engine room ventilation
Check that the ventilation ducts to the engine room are not
blocked.
•
Accelerator incorrectly adjusted
Adjust the accelerator.
•
Excessive back pressure in exhaust system
Check that the exhaust pipe is not restricted in any way.
Содержание TAD1630G
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Страница 18: ...Design and Function Group 21 16 Engine Design and Function ...
Страница 80: ...Service procedures engine Group 21 78 Application of sealant to cylinder block ...
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Страница 164: ...7742302 English 10 2002 ...