PROCEDURE
VISUALLY CHECK TURBOCHARGER SUB-ASSEMBLY
*1 | Turbine Wheel |
Check for deformation and cracks in the turbine wheel on the exhaust side.
If the turbine wheel is cracked or deformed, replace the turbocharger sub-assembly.
INSPECT AXIAL PLAY OF TURBINE SHAFT
Using a dial indicator, insert the needle of the dial indicator into the exhaust side of the turbine shaft.
Note
Turbocharger sub-assembly and dial indicators are surely fixed when performing measurement.
Move the turbine shaft in an axial direction and measure the axial play of the turbine shaft.
Maximum axial play |
---|
0.11 mm (0.00433 in.) |
If the axial play is more than the maximum, replace the turbocharger sub-assembly.
INSPECT RADIAL PLAY OF TURBINE SHAFT
Using a dial indicator, insert the needle of the dial indicator into the oil outlet hole, and set it in the center of the turbine shaft.
Move the turbine shaft in a radial direction and measure the radial play of the turbine shaft.
Maximum radial play |
---|
0.112 mm (0.00440 in.) |
If the radial play is more 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 a little effort to rotate the turbine wheel, this is not a problem.
If the turbine wheel does not rotate smoothly, replace the turbocharger sub-assembly.