Exhaust Manifold W/ Turbocharger Inspection
VISUALLY CHECK TURBOCHARGER SUB-ASSEMBLY
INSPECT AXIAL PLAY OF TURBINE SHAFT
CHECK TURBINE SHAFT ROTATION
INSPECT TURBOCHARGER NOZZLE VANE CONTROL ACTUATOR
Exhaust Manifold W/ Turbocharger -- Inspection |
| 1. VISUALLY CHECK TURBOCHARGER SUB-ASSEMBLY |
Text in Illustration*1
| Compressor Impeller
|
Check for deformation and cracks in the compressor impeller on the intake side.
If the compressor impeller is cracked or deformed, replace the turbocharger sub-assembly.
Text in Illustration*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.
| 2. 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.
- NOTICE:
- Turbocharger sub-assembly and dial indicators are surely fixed when performing measurement.
Move the turbine shaft in the 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.
| 3. CHECK TURBINE SHAFT ROTATION |
Rotate the turbine wheel on the exhaust side with your finger and check that it rotates smoothly.
- HINT:
- 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.
| 4. INSPECT TURBOCHARGER NOZZLE VANE CONTROL ACTUATOR |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
1 - 2
| 20°C (68°F)
| 1 to 100 Ω
|
- HINT:
- The temperature indicated in "Condition" is the temperature of the turbocharger nozzle vane control actuator.
- If the result is not as specified, replace the turbocharger nozzle vane control actuator.
