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Oil Pump Removal/Installation: Notes

WARNING:
  • Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled.
  • A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall, causing death or serious injury. Never work around or under a lifted vehicle if it is not securely supported on safety stands.
  • 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.
CAUTION:
  • If the camshaft is rotated with the timing chain removed and the piston at the top dead center position, the valve may contact the piston and the engine could be damaged. When rotating the camshaft with the timing chain removed, rotate it after lowering the piston from the top dead center position.
  • When rotating the camshaft using a wrench on the cast hexagon, the wrench may contact the rocker arm and damage the rocker arm. To prevent damage to the rocker arm when holding the camshaft on the cast hexagon, use a wrench on the rear side of the engine as shown in the figure to secure a clearance between the cam.
Fig 1: Rotating Camshaft Using Wrench
G09758333Courtesy of MAZDA MOTORS CORP.
NOTE:
  • Width at the cast hexagon of the camshaft is 22-24 mm {0.87-0.94 in}  .
  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  3. Remove the ignition coil/ion sensors. (See IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION .)
    Fig 2: Identifying Camshaft Cast Hexagon Dimension
    G09758334Courtesy of MAZDA MOTORS CORP.
  4. Remove the front undercover No. 2. (See FRONT UNDER COVER NO. 2 REMOVAL/INSTALLATION .)
  5. Remove the splash shield. (See SPLASH SHIELD REMOVAL/INSTALLATION .)
  6. Remove the drive belt. (See DRIVE BELT REMOVAL/INSTALLATION .)
  7. Drain the engine oil. (See ENGINE OIL REPLACEMENT .)
  8. Remove the oil pan. (See OIL PAN REMOVAL/INSTALLATION .)
  9. Remove the engine front cover. (See TIMING CHAIN REMOVAL/INSTALLATION .)
  10. Remove in the order indicated in the table.
  11. Install in the reverse order of removal.
  12. Refill with the specified type and amount of the engine oil. (See ENGINE OIL REPLACEMENT .)
  13. Start the engine and confirm that there is no oil leakage.
    • If there is oil leakage, repair or replace the applicable part.
  14. Inspect the oil level. (See ENGINE OIL LEVEL INSPECTION .)
  15. Inspect for the ignition timing and idle speed. (See ENGINE TUNE-UP .)
  16. Inspect the oil pressure. (See OIL PRESSURE INSPECTION .)
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