INSPECT TURBOCHARGER MOTOR
| *1 | Ohmmeter |
Check the resistance.
Using an ohmmeter, measure the resistance between the terminals.
| Standard resistance | ||||
|---|---|---|---|---|
|
If the result is not as specified, replace the turbocharger.
VISUALLY CHECK TURBOCHARGER SUB-ASSEMBLY
Check for deformation and cracks in the turbine wheel on the exhaust side.
| *1 |
Turbine Wheel |
If the turbine wheel is cracked or deformed, replace the turbocharger sub-assembly.
INSPECT AXIAL PLAY OF TURBINE SHAFT
Set the needle of a dial indicator to the exhaust side of the turbine shaft.
Move the turbine shaft in the axial direction and measure the axial play of the turbine shaft using the dial indicator.
Note
Turbocharger sub-assembly and dial indicators are surely fixed when performing measurement.
| Maximum axial play |
|---|
| 0.11 mm (0.0043 in.) |
If the axial play is greater than the maximum, replace the turbocharger sub-assembly.
INSPECT RADIAL PLAY OF TURBINE SHAFT
Insert the needle of a dial indicator into the oil outlet hole, and set it to the center of the turbine shaft.
Move the turbine shaft in the radial direction and measure the radial play of the turbine shaft using the dial indicator.
| Maximum radial play |
|---|
| 0.112 mm (0.0044 in.) |
If the radial play is greater than the maximum, replace the turbocharger sub-assembly.
CHECK TURBINE SHAFT ROTATION
Rotate the turbine wheel on the exhaust side with your finger and check that it rotates smoothly.
Tech Tips
Even if it takes effort a little to rotate the turbine wheel, this is not a problem.
If the turbine wheel does not rotate smoothly, replace the turbocharger sub-assembly.