MTU Detroit Diesel 183 Series Technical Publication page 349

Task Description
Fault diagnosis
Malfunction
Exhaust opacity and power reduction Air filter heavily contaminated.
Oil level in turbocharger rises, oil
emerges at seal on turbine and
compressor side.
Oil supply line at turbocharger
leaking.
20080/1 E 98-12
Cause
Turbine or compressor wheel
scrapes against housing.
Foreign bodies in exhaust.
Compressor contaminated.
Leak between exhaust elbow and
exhaust turbocharger.
Charge air line deformed.
Insufficient air
Exhaust pipework behind
turbocharger or silencer
contaminated or damaged.
Oil separator damaged or
contaminated.
The reduced pipe cross-section
(through carbon deposits) results in
increased flow resistance in the oil
return line.
Gasket defective.
Group
Subgroup
Page
Remedy
Clean or replace air filter element.
Replace Donaldson air filter.
Repair or replace turbocharger.
Remove foreign bodies.
Clean dirt and deposits from
compressor.
Seal turbocharger to exhaust elbow.
Replace charge air line.
Check flanges and hose
connections between turbocharger
and charge air manifold for leaks,
renew seals as necessary.
Check exhaust pipework, clean,
repair or replace silencer.
Replace oil separator.
Clean or replace oil return line.
Replace gasket at oil connection.
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6010
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