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
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38.113—38.138 mm {1.50051—1.50150 in}
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Caution
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• 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
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21.501—21.527 mm {0.846496—0.847520 in}
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Caution
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• 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
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0.10—0.17 mm {0.004—0.006 in}
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Caution
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• 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
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0.07—0.15 mm {0.0028—0.0059 in}
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Caution
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• 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
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0.02—0.04 mm {0.0008—0.0015 in}
Oil pump gear size (mm {in})
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Identification mark
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Thickness
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0
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9.946—9.952
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1
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9.953—9.959
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2
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9.960—9.966
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3
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9.967—9.973
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4
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9.974—9.980
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5
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9.981—9.987
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6
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9.988—9.994
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Caution
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• 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.
