Revotron 1.2T
17
9. Turbocharger
Sr. No
Turbocharger Failure Mode
Potential Effect of Failure - Engine Level
1
Incorrect boost pressure
•
Loss of Power
•
Engine Hunting
•
High NVH for Engine
2
Air leakage
•
Loss of Power
•
Incomplete combustion
3
Exhaust gas leakage @ Turbocharger
•
Emissions regulation not met
•
Loss of Power and torque
•
Increased engine Bay temperature
4
Air contamination
•
Cyl Scoring leading to Oil Pullover into the
Combustion chamber and then Oil Burning -
Physical dry particle
•
Hydrostatic lock in case of water ingress
•
Engine Seizure
5
Inadequate back pressure for turbo
•
Lean Combustion leading to Loss of power
•
Engine Hunting
•
High NVH for Engine
6
Turbocharger noise
•
Increased engine assy noise
•
Veh Pass by regulation not met
7
Oil leakage: center housing to compressor
housing
•
Oil loss
•
Lub oil Consumption high
•
Increased blow by
•
Engine Seizure
8
Oil leakage: Center Housing to turbine
housing
•
Oil loss
•
Lub oil Consumption high
•
Increased blow by
•
Engine Seizure
9
Oil leakage: external connection to center
housing not ensured
•
Oil loss
•
Lub oil Consumption high
•
Increased blow by
•
Engine Seizure
10
Oil contamination
•
Cyl Scoring leading to Oil Pullover into the
Combustion chamber and then Oil Burning -
Physical dry particle
•
Hydrostatic lock in case of oil and coolant
mixing in TC
•
Engine Seizure
11
Coolant Leakage
•
Coolant loss
•
Engine Overheating
•
Engine Seizure
12
Fail to receive and send signals
•
Loss of Power
•
Engine Hunting
•
High NVH for Engine
13
Service components do not meet service
time target / difficult to service
•
Increased downtime during service
•
Customer annoyance
•
Increased labour charges
