Inspection

TURBOCHARGER

Inspection


INSPECTION PROCEDURE

Trouble Diagnosis of Turbocharger
Check items before trouble diagnosis
1.Check that the engine oil level is between L (Low level) and H (High level) of the oil level gauge. [When the engine oil amount is more then H (High level), the engine oil flows into the inlet duct through the blowby gas passage, and the turbocharger is misjudged failure.]
2.Ask the customer if he/she always runs the vehicle in idle engine speed to cool the engine oil down after driving.
- Replace the exhaust manifold and turbocharger assembly when any malfunction is found after unit inspections specified in the table below.
- If no malfunction is found after the unit inspections, judge that the turbocharger body has no non-standard conditions. Check the other parts again.










A: Highly possible.B: Possible.C: May exist.

INSPECTION AFTER REMOVAL

Turbocharger











CAUTION:
When the compressor wheel, turbine wheel or rotor shaft is damaged, remove all the fragments and foreign matter left in the following passages in order to prevent a secondary failure:

Suction side: Between turbocharger and charge air cooler
Exhaust side: Between turbocharger and outlet duct

Turbocharger Boost Control





- Connect the a pressurized handy pump (A) to the actuator, and check that the rod strokes smoothly in compliance with the following pressure.

Standard (value of pressure/Value of rod moving): Turbocharger.

INSPECTION AFTER INSTALLATION

Start engine and raise engine speed to check no exhaust emission leaks.