METERING OIL PUMP INSPECTION

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Metering Oil Pump Voltage Inspection

1.  Disconnect the metering oil pump connector (6-pin).

2.  Measure the voltage at terminals C and D.

•  If not within the specification, repair or replace the related harnesses.

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Metering Oil Pump Resistance Inspection

1.  Disconnect the metering oil pump connector (6-pin).

2.  Measure the resistance between terminals D—B, D—F, C—A, and C—E using a tester.

•  If not within the specification, replace the metering oil pump.

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Positioning Switch Resistance Inspection

1.  Idle the engine.

2.  Stop the engine.

3.  Disconnect the metering oil pump connector (3-pin).

4.  Measure the coil resistance between A-C terminals using a tester.

•  If not within the specification, replace the metering oil pump.

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Oil Nozzle Inspection

1.  Remove the oil nozzle.

2.  Connect a vacuum pump to oil nozzle A, and apply negative pressure while checking the pressure value on the pressure gauge.

•  If the maximum value of the negative pressure is less than 66.5 kPa {0.68 kgf/cm², 9.65 psi}, replace the oil nozzle.

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Oil Leakage Inspection

1.  Start the engine and keep it running at idle.

2.  Inspect for oil leakage along the mating surfaces of the metering oil pump and the front cover and where the oil pipe is connected.

•  If there is any malfunction, repair or replace.

Clogging Inspection

1.  Verify that there is no oil clogging in the following parts.

•  If there is any clogging, repair or replace.

―  Oil pipes

―  Oil nozzles

―  Metering oil pump connector bolts (connecting oil pipes and metering oil pump)