OIL PUMP INSPECTION

id051300260400

1. Using a dial gauge, measure the inner diameter of the pump housing component bushings.

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  Pump housing bushing inner diameter

  38.113—38.138 mm {1.50051—1.50150 in}

  Caution
  • Measure at different places and take an average. If it exceeds the specification, replace the pump housing component with a new one.
  • When the pump housing component is replaced, inspect the contact surface opposed to the torque converter.
  • If the surface of it is scratched or has changed color, replace the torque converter with a new one.

2. Using a dial gauge, measure the inner diameter of the oil pump shaft bushings.

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  Oil pump shaft bushing inner diameter

  21.501—21.527 mm {0.846496—0.847520 in}

  Caution
  • Measure at different places and take an average. If it exceeds the specification, replace the oil pump shaft with a new one.
  • When the oil pump shaft is replaced, inspect the contact surface opposed to the input shaft.
  • If the surface of it is scratched or has changed color, replace the input shaft with a new one.

3. Press the gear oil pump towards the outer side of one side of the pump housing. Measure the clearance using a feeler gauge.

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  Oil pump gear outer standard clearance

  0.10—0.17 mm {0.004—0.006 in}

  Caution
  • If it exceeds the specification, replace the pump housing with a new one.

4. Measure the clearance between the inner and outer oil pump gears using a feeler gauge.

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  Oil pump gear inner standard clearance

  0.07—0.15 mm {0.0028—0.0059 in}

  Caution
  • If it exceeds the specification, replace the pump housing with a new one.

5. Measure the side clearance of both gears using a steel straight edge and feeler gauge.

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  Oil pump gear side standard clearance

  0.02—0.04 mm {0.0008—0.0015 in}

Oil pump gear size (mm {in})

Identification mark | Thickness
--- | ---
0 | 9.946—9.952
1 | 9.953—9.959
2 | 9.960—9.966
3 | 9.967—9.973
4 | 9.974—9.980
5 | 9.981—9.987
6 | 9.988—9.994

  Caution
  • If the measurement exceeds the maximum specification, replace the inner oil pump gear and outer oil pump gear with a new one so that the side clearance is within the maximum specification. If the side clearance still exceeds the maximum specification, replace the oil pump with a new one.