Turbo Problems Diagnosis
When idling, the exhaust smoke is blue. No blue smoke during driving. No oil leaking.
The impeller shaft of the turbocharger is poorly sealed.
Blue smoke is emitted when idling and driving, and it is more serious when accelerating, and the oil consumption is large.
Exhaust pipe of turbo is blocked.
Three key components in turbo: compressing blade, impeller shaft and turbo blade.
The oil consumption is large, but the exhaust smoke is normal and the power is not reduced.
Oil leakage at the exhaust end, the sealing ring maybe damaged.
High oil consumption, blue smoke from the exhaust, but no drop in power.
Oil leakage inside air compressing end, oil seal is damaged, oil leaked from impeller shaft to new air route.
The exhaust smoke is black, engine power drops, and the supercharger makes abnormal noise.
(1) If there is a metal friction sound, it is caused by the excessive wear of the turbocharger rotor bearing or thrust bearing, so the sound is from friction between the impeller shaft and the shell.
(2) If it is not the metal friction sound but the airflow sound, it is the air leakage caused by the poor connection at the inlet or exhaust ends.
Carbon deposits on shaft.
Carbon deposits at exhaust pipe.