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3.7. Oil pump of diesel engines

Removal

Remove internal and external gear wheels of the oil pump from a forward cover, previously having noted their mutual situation.

Check

 PERFORMANCE ORDER

  1. Check lack of wear or damage of teeths of gear wheels of the oil pump.
  2. Check an axial gap of rotors of the oil pump. Axial gap: 0,02–0,07 mm.
  3. Measure by the probe a gap between teeths of rotors of the oil pump. A gap between teeths of rotors of the oil pump: 0,1 – 0,2 mm.
  4. Check a radial gap of rotors of the oil pump.

Plunger and spring

 PERFORMANCE ORDER

  1. Check smoothness of movement of a plunger.
  2. Check a spring for lack of deformation or damages.

Check of the sensor of pressure of oil

 PERFORMANCE ORDER

  1. Ohmmeter check conductivity of connection between the plug of the sensor and the block of cylinders. In the absence of conductivity, replace the sensor.
  1. Ohmmeter check conductivity of connection between the plug of the sensor and the block of cylinders at the put-forward sensor rod. If conductivity is available even at the put-forward rod, replace the sensor.
  1. However, if there is no conductivity even at the annex of vacuum of 50 kPa to a sensor opening, the sensor works properly.

Check of a spray of oil


 PERFORMANCE ORDER

  1. Check a spray of oil and the control valve for lack of contaminations.
  2. Check an oil spray for absence of damage and deformations.

Installation

 PERFORMANCE ORDER

  1. Establish an external rotor of the oil pump in a forward cover, previously having combined the tags put earlier.

Before installation of a rotor oil it engine.

  1. Using the special tool, screw the oil pressure sensor, previously having greased a sensor carving with a sealant layer.

Do not delay pressure sensor with application of the big moment of an inhaling.