the exhaust back pressure may be too high,
which will reduce engine power.
Charge air cooler, checking
1
Check the charge air cooler for damage to the
cells and connections.
If there is any damage, change the charge air
cooler.
2
Check the charge air cooler and radiator for inner
clogging.
If there is any clogging, clean in accordance with
Charge Air Cooler, External Cleaning
.
Inlet manifold, inspection
1
Check that the inlet pipes are clean inside, and
undamaged. Crushed, damaged or dirty inlet
pipes can reduce the charge pressure.
Charge air pipes, checking
1
Inspect the charge air pipes for visible cracks and
external damage.
2
Check that there is no oil in the charge air pipes.
If the pipes are damaged or the union seal rings
leak, the charge pressure will be too low and
engine performance will be affected.
If the pipes are contaminated with oil on the
inside, this indicates oil leakage in the turbo-
charger turbine shaft seal. In this case, the tur-
bocharger should be changed as a unit.
IMPORTANT!
If there is oil in charge air pipes and charge air
hoses, the charge air cooler and all pipes and
hoses in the charge air system must be very thor-
oughly cleaned inside, before the engine is started.
Charge Air Cooler, External
Cleaning
Remove guards as necessary, to access the cooler.
Clean with water and a mild detergent. Use a soft
brush. Be careful not to damage the radiator matrix.
Re-install the components.
IMPORTANT!
Do not use a high pressure power washer.
Charge Air Pipe, Leakage Check
1
Inspect the charge air pipes for visible cracks and
external damage.
2
Check that there is no oil in the charge air pipes.
If the pipes are damaged or the union seal rings
leak, the charge pressure will be too low and
engine performance will be affected. If the pipes
are contaminated with oil on the inside, this indi-
20-0 Engine Information, General
7748841 06-2010
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