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Home › Nissan-Datsun › 2007 › Sentra SE-R Spec V, RS6F52A › Repair and Diagnosis › Maintenance › Procedures › Maintenance › Engine Maintenance - MR20DE › Engine Oil Level › Oil Pressure Check

Oil Pressure Check

WARNING:
  • Be careful not to burn yourself, as engine oil may be hot.
  • For engine oil pressure check the transaxle should be in " Park position" (CVT models) or "Neutral position" (M/T models), and apply the parking brake securely.
  1. Disconnect harness connector at oil pressure switch (1), and remove oil pressure switch using a suitable tool.
    • Oil pan (lower) (2)
    • <= Front
      Fig 1: Identifying Oil Pressure Switch And Oil Pan
      G04928793
  2. Install oil pressure gauge and hose.

    Tool number : ST25051001 (J-25695-1) 

    : ST25052000 (J-25695-2) 

    Fig 2: Identifying Oil Pressure Gauge
    G04899908
  3. Check engine oil level. Refer to "ENGINE OIL LEVEL ".
  4. Start engine and warm it up to normal operating temperature.
  5. Check oil pressure with engine running under no-load.
    NOTE: When engine oil temperature is low, engine oil pressure becomes high.

    Engine oil pressure [Engine oil temperature at 80°C (176°F)] 

    ENGINE OIL PRESSURE REFERENCE

    Engine speed rpm Approximate discharge pressure kPa (bar, kg/cm2 , psi)
    Idle speed More than 60 (0.60, 0.61, 9)
    2,000 More than 200 (2.0, 2.0, 29)

    If difference is extreme, check oil passage and oil pump for oil leaks. 

  6. After the inspections, install oil pressure switch as follows:
    1. Remove old liquid gasket adhering to oil pressure switch and engine.
    2. Apply liquid gasket and tighten oil pressure switch to specification.

      Use Genuine Silicone RTV Sealant or equivalent.  Refer to "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

      Oil pressure switch : 14.7 N.m (1.5 kg-m, 11 ft-lb) 

    3. Check engine oil level. Refer to "ENGINE OIL LEVEL ".
    4. After warming up engine, make sure there are no engine leaks of oil with running engine.
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