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Engine Removal/Installation: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.
  • Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
  • Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line Safety Procedure". (Refer to BEFORE SERVICE PRECAUTION .)
CAUTION:
  • Secure the steering wheel using tape or a cable to prevent the steering shaft from rotating after disconnecting the steering shaft. If the steering wheel rotates after the steering shaft and the steering gear and linkage are disconnected, the internal parts of the clock spring could be damaged.
  • Applying excessive force (force of 100 N {10.2 kgf, 22.5 lbf} or more) to the electric variable valve timing motor/driver may cause a malfunction. When servicing, be careful not to apply excessive force to the electric variable valve timing motor/driver using other parts or tools.
NOTE:
  • Perform the engine and transaxle component removal/installation from below the vehicle.
  1. Disconnect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  2. Remove the plug hole plate. (Refer to PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  3. Remove the air cleaner, air hose and fresh air duct as a single unit. (Refer to INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  4. Remove the bolts, nut and connector shown in the figure, and set the wiring harness aside.
    Fig 1: Identifying Wiring Harness Connector, Bolts And Nut With Torque Specification
    G10968692Courtesy of MAZDA
  5. Remove the battery tray and PCM component. (Refer to BATTERY REMOVAL/INSTALLATION .)
  6. Remove the front under cover No. 1 and No. 2. (Refer to FRONT UNDER COVER No. 1 REMOVAL/INSTALLATION .) (Refer to FRONT UNDER COVER No. 2 REMOVAL/INSTALLATION .)
  7. Remove the front splash shield. (Refer to FRONT SPLASH SHIELD REMOVAL/INSTALLATION .)
  8. Drain the engine coolant. (Refer to ENGINE COOLANT REPLACEMENT .)
  9. Drain the ATF. (Refer to AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [EW6A-EL/EW6AX-EL] .)
  10. Drain the transfer oil. (4WD) (Refer to TRANSFER OIL REPLACEMENT [EW6AX-EL] .)
  11. Remove the front wheels and tires. (Refer to GENERAL PROCEDURES (BRAKE) .)
  12. Disconnect the selector cable. (Refer to AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION .)
  13. Disconnect the vacuum hose. (Refer to VACUUM HOSE REMOVAL/INSTALLATION .)
  14. Disconnect evaporative hose No. 1 from the engine side. (Refer to PURGE SOLENOID VALVE REMOVAL/INSTALLATION .)
  15. Disconnect the fuel hose from the engine side. (Refer to QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
  16. Disconnect the upper radiator hose. (Refer to COOLING FAN MOTOR REMOVAL/INSTALLATION .)
  17. Disconnect the heater hose. (Refer to A/C UNIT REMOVAL/INSTALLATION .)
  18. Disconnect the lower radiator hose. (Refer to RADIATOR REMOVAL/INSTALLATION .)
  19. Remove the generator drive belt. (Refer to DRIVE BELT REMOVAL/INSTALLATION .)
  20. Remove the A/C compressor with the cooler hose still connected and secure it using wire or rope so that it is out of the way. (with A/C) (Refer to A/C COMPRESSOR REMOVAL/INSTALLATION .)
  21. Remove the TWC installation nuts (exhaust manifold side) and secure the TWC using wire or rope so that it is out of the way. (2WD) (Refer to EXHAUST SYSTEM REMOVAL/INSTALLATION .)
  22. Remove the TWC. (4WD) (Refer to EXHAUST SYSTEM REMOVAL/INSTALLATION .)
  23. Remove the propeller shaft. (4WD) (Refer to PROPELLER SHAFT REMOVAL/INSTALLATION .)
  24. Disconnect the front drive shaft (LH) from the transaxle side and set the drive shaft (LH) out of the way. (Refer to FRONT DRIVE SHAFT REMOVAL/INSTALLATION .)
  25. Disconnect the front drive shaft (RH) from the transaxle side and set the drive shaft (RH) out of the way. (2WD) (Refer to FRONT DRIVE SHAFT REMOVAL/INSTALLATION .)
  26. Remove the front drive shaft (RH). (4WD) (Refer to FRONT DRIVE SHAFT REMOVAL/INSTALLATION .)
  27. Remove the bolt and clips, and set the ground cable aside.
    Fig 2: Identifying Ground Cable Clips And Bolt With Torque Specification (RH)
    G10968693Courtesy of MAZDA
    Fig 3: Identifying Ground Cable Clips And Bolt With Torque Specification (LH)
    G10968694Courtesy of MAZDA
  28. Remove in the order indicated in the table.
  29. Install in the reverse order of removal.
  30. Refill the transfer oil. (4WD) (Refer to TRANSFER OIL REPLACEMENT [EW6AX-EL] .)
  31. Refill the ATF. (Refer to AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [EW6A-EL/EW6AX-EL] .)
  32. Refill the engine coolant. (Refer to ENGINE COOLANT REPLACEMENT .)
  33. Start the engine, and inspect and adjust the following:
    • Front wheel alignment (Refer to FRONT WHEEL ALIGNMENT .)
    • Leakage of engine oil, engine coolant, ATF and fuel.
    • Runout and contact of pulley and belt.
    • Ignition timing, idle speed and idle mixture. (Refer to ENGINE TUNE-UP .)
    • Engine-driven accessories operation.
NOTE:
  • If the engine is overhauled and assembled to the vehicle, perform a road test to verify that there is no abnormal vibration and noise.

2WD 

Fig 4: Engine Components With Torque Specification (2WD)
G10968695Courtesy of MAZDA
COMPONENT DESCRIPTION

1 No. 1 engine mount rubber, front crossmember component
(See No. 1 Engine Mount Rubber, Front Crossmember Component Removal Note .)
(See Engine Mount Installation Note .)
2 No. 1 engine mount bracket
(See Engine Mount Installation Note .)
3 No. 4 engine mount bracket
(See No. 3 Engine Mount, No. 4 Engine Mount Bracket Removal Note .)
(See Engine Mount Installation Note .)
4 No. 3 engine mount
(See No. 3 Engine Mount, No. 4 Engine Mount Bracket Removal Note .)
(See Engine Mount Installation Note .)
5 Engine, transaxle

AWD 

Fig 5: Identifying Engine Components With Torque Specification (AWD)
G10968696Courtesy of MAZDA
COMPONENT DESCRIPTION

1 No. 1 engine mount rubber, front crossmember component
(See No. 1 Engine Mount Rubber, Front Crossmember Component Removal Note .)
(See Engine Mount Installation Note .)
2 No. 4 engine mount bracket
(See No. 3 Engine Mount, No. 4 Engine Mount Bracket Removal Note .)
(See Engine Mount Installation Note .)
3 No. 3 engine mount
(See No. 3 Engine Mount, No. 4 Engine Mount Bracket Removal Note .)
(See Engine Mount Installation Note .)
4 Engine, transaxle
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