Mazda 3 Service Manual: Oil Pump Removal/Installation [Skyactiv G 2.0]

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. When holding the camshaft on the cast hexagon, to prevent damage to the rocker arm, use the wrench at engine rear side as shown in the figure to secure a clearance between the cam.

  

  
  

NOTE:

• Width at the cast hexagon of the camshaft is 22—24 mm {0.87—0.94 in}.

  

  
  

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Remove the plug hole plate..

4. Remove the coolant reserve tank with the hose still connected and set it out of the way..

5. Remove the cooler hose bracket bolt and set the cooler hose aside.

6. Remove the aerodynamic under cover No.2 and splash shield as a single unit..

7. Remove the drive belt..

8. Drain the engine oil..

9. Remove the oil pan..

10. Remove the engine front cover..

11. Remove in the order indicated in the table.

12. Install in the reverse order of removal.

13. Refill with the specified type and amount of the engine oil..

14. Start the engine and confirm that there is no oil leakage.

• If there is oil leakage, repair or replace the applicable part.

15. Inspect the oil level..

16. Inspect for the ignition timing and idle speed..

17. Inspect the oil pressure..

Oil Pump Driven Sprocket Removal Note

1. Temporarily assemble the crankshaft pulley lock bolt, and lock the oil pump against rotation as shown in the figure.

2. Remove the oil pump driven sprocket.

Oil Pump Installation Note

1. Install the oil pump using the following procedure:

a. Temporarily tighten the three bolts

shown in the figure.

b. Tighten the two bolts

shown in the figure to the specified torque.

NOTE:

• The tightening order for the two bolts is optional.

Tightening torque

• 20—26 N·m {2.1—2.6 kgf·m, 15—19 ft·lbf}

c. Finally, tighten the bolt shown in the figure to the specified torque.

Tightening torque

• 20—26 N·m {2.1—2.6 kgf·m, 15—19 ft·lbf}

Oil Pump Driven Sprocket Installation Note

1. Temporarily assemble the crankshaft pulley lock bolt, and lock the oil pump against rotation as shown in the figure.

2. Install the oil pump driven sprocket.

Tightening torque

• 20—30 N·m {2.1—3.0 kgf·m, 15—22 ft·lbf}

3. Remove the temporarily assembled crankshaft pulley lock bolt.