Iveco EuroCargo (12 to 26 t). Manual — part 35
NO
YES
NO
NO
YES
NO
YES
2
NO
YES
NO
Efficient pre-post heating system.
Diagnosis with Modus - IT2000 - IWT.
Efficient high-pressure pump.
Engine Test with Modus - IT2000 - IWT.
Efficient injector.
Engine Test with Modus - IT2000 - IWT.
Check O-Ring seal.
Correct compression ratio.
Revise the engine or limit intervention to affected parts
(valves, elastic rings, etc.).
THE ENGINE IS EXCESSIVELY HEATED
Correct cooling liquid level.
Check possible losses and restore the level.
Efficient water pump and fan control belts.
Check, adjust tension and possibly replace the parts.
(continued)
146
ENGINE
E
URO
C
ARGO
T
ECTOR
12-26 t
Base - February 2003
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Efficient water pump.
Revise or replace the assembly.
Efficient thermostat.
Replace.
Carry out an accurate washing, check whether there
are liquid leakages; possibly replace the part.
Efficient radiator.
Efficient air filter and circuit pipings.
Clean or replace faulty parts.
The engine brake is disengaged.
Check and possibly replace.
Efficient cylinder head.
Replace.
Efficient fan.
Replace.
ENGINE
147
E
URO
C
ARGO
T
ECTOR
12-26 t
Efficient high-pressure pump.
NO
YES
Efficient fuel filters.
Replace, proceeding as described in ”Use and
Maintenance” booklet.
Efficient low- and high-pressure supply circuit.
Check system fittings seal.
Efficient thermostat.
Check small priming pump and clean the floating device
from possible impurities.
Presence of fuel in the tank.
Replace.
Efficient fuel floating device in the tank.
Check fuel level.
Engine Test with Modus - IWT - IT2000, possibly
replace.
NO
YES
NO
YES
NO
YES
NO
YES
NO
3
NO
YES
Efficient injectors and correctly-operating flow limiter.
Engine Test with Modus - IWT - IT2000, possibly
replace.
Check O-Ring seal.
(continued)
THE ENGINE LACKS POWER
148
ENGINE
E
URO
C
ARGO
T
ECTOR
12-26 t
Base - February 2003
NO
YES
NO
YES
NO
NO
YES
NO
YES
Efficient rail overpressure valves.
Disconnect fuel return piping from rail and check the
presence of blow-by.
Correct compression ratio.
Engine Test with Modus — IWT — IT2000.
Efficient turbosupercharger (blades, bearings, actuators
integrity)
Repair or replace the assembly.
4
THE ENGINE HAS BLACK OR DARK
GREY SMOKES
NO
(continued)
Efficient air filter.
Replace.
Efficient injectors.
Engine Test with Modus — IWT — IT2000.
Check O-Ring seal.
Correct compression ratio.
Engine Test with Modus — IWT — IT2000.
YES
Efficient valve clearance.
Check — restore.
NO
ENGINE
149
E
URO
C
ARGO
T
ECTOR
12-26 t
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