OIL PUMP INSPECTION
id011000505300
Type A
1. Measure the body clearance between the outer rotor and the body using a feeler gauge.
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• If it exceeds the maximum specification, replace the oil pump.
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Standard body clearance
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0.20—0.25 mm {0.0079—0.0098 in}
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Maximum body clearance
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0.3 mm {0.0118 in}
2. Measure the tip clearance between the inner rotor and the outer rotor using a feeler gauge.
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• If it exceeds the maximum specification, replace the oil pump.
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Standard tip clearance
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0.03—0.12 mm {0.0012—0.0047 in}
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Maximum tip clearance
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0.15 mm {0.0059 in}
3. Measure the side clearance between the rotor and the side housing using a straight edge and a feeler gauge.
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• If it exceeds the maximum specification, replace the oil pump.
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Standard side clearance
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0.03—0.125 mm {0.0012—0.0049 in}
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Maximum side clearance
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0.15 mm {0.0059 in}
Type B
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Note
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• The oil pump cannot be disassembled because it is a precision unit. If a malfunction occurs, replace the oil pump component as a single unit.
1. Visually inspect the oil pump gasket.
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• Replace the oil pump component if the condition corresponds to any one of the following:
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― The lip is damaged.
― The lip and the metallic outer ring are at the same level.
