10.4.7. Diagnostics and troubleshooting
- 162 -
Complaints Possible causes Corrections
1. Excessive black 1) Air cleaner element clogged Replace or clean
smoke 2) Restrictions in air duct Check and correct
3) Leakage at intake manifold Check and correct
4) Turbocharger seized up and not rotating Disassemble/repair or replace
5) Turbine blades and compressor blades Disassemble/repair or replace
coming in contact with each other or
damaged
6) Exhaust piping deformed or clogged Check and correct
2. Excessive white 1) Oil leak into turbine and compressor Disassemble/repair or replace
smoke 2) Worn or damaged seal ring due to Disassemble/repair or replace
excessive wear of bearing
3. Low engine 1) Gas leak at each part of exhaust system Check and correct
output 2) Air cleaner element restricted Replace or clean
3) Turbocharger fouled or damaged Disassemble/repair or replace
4) Leakage at discharge port on Check and correct
compressor side
4. Unusual sound 1) Rotor assembly coming in contact Disassemble/repair or replace
or vibration 2) Unbalanced rotation of rotor Disassemble/repair or replace
3) Seized up Disassemble/repair or replace
4) Each joint loosened Check and correct
To Next Page
Loading...
