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Oil Pressure Inspection: AJ

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your skin by washing with soap and water immediately after working with engine oil.
  • Hot engines and the engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled.
  1. Remove the under cover.
  2. Remove the drive belt. (See DRIVE BELT REPLACEMENT [AJ] ).
  3. Remove the A/C compressor with the pipe still connected. Position the A/C compressor so that it is out of the way. (See A/C COMPRESSOR REMOVAL/INSTALLATION .)
  4. Remove the oil pressure switch.
  5. Screw the SSTs  into the oil pressure switch installation hole.
    Fig 1: Connecting SST To Oil Pressure Switch Installation Hole (AJ)
    G01027512Courtesy of MAZDA MOTORS CORP.
  6. Install the A/C compressor. (See A/C COMPRESSOR REMOVAL/INSTALLATION .)
  7. Install the drive belt. (See DRIVE BELT REPLACEMENT [AJ] .)
  8. Warm up the engine to normal operating temperature.
  9. Run the engine at the specified speed, and note the gauge readings.
    • If not within the specification, inspect for the cause and repair or replace as necessary.
    NOTE:
    • The oil pressure can vary with oil viscosity and temperature.

    Oil pressure 

    138-310 kPa (1.40-3.17 kgf/cm 2  , 20-45 psi [1,500 rpm] 

  10. Stop the engine and wait until it is cool.
  11. Remove the drive belt. (See DRIVE BELT REPLACEMENT [AJ] .)
  12. Remove the A/C compressor with the pipe still connected. Position the A/C compressor so that it is out of the way. (See A/C COMPRESSOR REMOVAL/INSTALLATION .)
  13. Remove the SSTs. 
  14. Apply silicone sealant to the oil pressure switch threads as shown in the figure.
    Fig 2: Applying Silicone Sealant To Oil Pressure Switch Threads (AJ)
    G01027513Courtesy of MAZDA MOTORS CORP.
  15. Install the oil pressure switch.

    Tightening torque

    12-16 N.m (1.2-1.7 kgf.m, 9-12 ft.lbf) 

  16. Install the A/C compressor. (See A/C COMPRESSOR REMOVAL/INSTALLATION .)
  17. Install the drive belt. (See DRIVE BELT REPLACEMENT [AJ] .)
  18. Start the engine and inspect for oil leakage.
    • If the oil leaks, specify the faulty part and repair or replace it.
  19. Install the under cover.
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