Air Intake and Exhaust System
02
080
5
OUO1004,0000C21 –19–29NOV00–2/2
TURBINE HOUSING OUTLET DEFECTS
Turbine Wheel Rub Bearing failure. Determine if engine and/or operator contributed to lack
of lubrication, contaminated lubrication, excessive
temperature, or debris generating engine failure in
progress. Correct as required.
Manufacturing defect. Correct as required (this group).
Foreign Object Damage Internal engine failure. Inspect and repair engine as required.
Objects left in intake system. Disassemble and inspect air intake system (this
group).
Leaking air intake system. Correct as required (this group).
Oil and/or Excessive Carbon Internal engine failure. Verified by oil in turbine housing. Correct as required.
Turbine seal failure. Inspect for excessive heat from overfueling and/or
restricted air intake.
Prolonged periods of low rpm engine Ask operator to run engine under load or at a higher
idling. rpm. (See Operator’s Manual.)
Restricted oil drain line. Inspect and clear oil drain line as required.
EXTERNAL CENTER HOUSING AND JOINT DEFECTS
Leaks from Casting Defective casting. Replace turbocharger (this group).
Defective gasket. Verify if leaks are occurring at gasket joints.
Leaks from Joints Loose attaching screws. Tighten to specifications in CTM (this group).
Defective gasket. Inspect and repair as required.
INTERNAL CENTER HOUSING DEFECTS
Excessive Carbon Build-Up in Housing Hot engine shutdown. Review proper operation with operator as shown in
or on Shaft Operator’s Manual.
Excessive operating temperature. Restricted air intake; overfueling or mistimed engine.
Restricted oil drain line. Inspect and clean oil drain lines as required.
Operating engine at high speeds and Idle engine for a few minutes to allow oil to reach
loads immediately after start-up. bearings before applying heavy loads.
CTM100 (06APR04)
02-080-5
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=305
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