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Engine Removal/Installation: Notes

WARNING:
  • 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". (See BEFORE SERVICE PRECAUTION .)
  • 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.
NOTE:
  • Perform the engine and transaxle component removal/installation from below the vehicle.
  1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION .)
  2. Disconnect the negative battery cable.
  3. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  4. Remove the PCM cover No. 1. (See BATTERY REMOVAL/INSTALLATION .)
  5. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION .)
  6. Remove the battery tray and PCM component. (See BATTERY REMOVAL/INSTALLATION .)
  7. Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  8. Remove the front wheels and tires. (See GENERAL PROCEDURES (SUSPENSION) .)
  9. Remove the aerodynamic under cover and splash shield as a single unit. (See AERODYNAMIC UNDER COVER REMOVAL/INSTALLATION .) (See SPLASH SHIELD REMOVAL/INSTALLATION .)
  10. Drain the transaxle oil (MTX) or ATF (ATX). (See MANUAL TRANSAXLE OIL REPLACEMENT .) (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT .)
  11. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  12. Remove the coolant reserve tank. (See COOLANT RESERVE TANK REMOVAL/INSTALLATION .)
  13. Disconnect the fuel hose. (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
  14. Disconnect the evaporative hose. (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
  15. Disconnect the brake vacuum hose. (See VACUUM HOSE REMOVAL/INSTALLATION .)
  16. Disconnect the radiator hose (upper and lower). (See RADIATOR REMOVAL/INSTALLATION .)
  17. Disconnect the water hose. (See THERMOSTAT REMOVAL/INSTALLATION .)
  18. Disconnect the heater hose. (See REFRIGERANT LINE REMOVAL/INSTALLATION .)
  19. Disconnect the power steering pipe component and then drain the power steering fluid. (See GENERAL PROCEDURES (STEERING) .)
  20. Disconnect the shift cable and wiring harness. (MTX) (See MANUAL TRANSAXLE REMOVAL/INSTALLATION .)
  21. Remove the clutch release cylinder with the pipe still connected. (MTX) (See CLUTCH RELEASE CYLINDER REMOVAL/INSTALLATION .)
  22. Disconnect the selector cable. (ATX) (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION .)
  23. Remove the crossmember bracket. (See FRONT CROSSMEMBER REMOVAL/INSTALLATION .)
  24. Set the TWC out of the way. (See EXHAUST SYSTEM REMOVAL/INSTALLATION .)
  25. Disconnect the drive shafts from the engine side, set the drive shafts out of the way. (See DRIVE SHAFT REMOVAL/INSTALLATION .)
  26. 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. (See A/C COMPRESSOR REMOVAL/INSTALLATION .)
  27. Remove the wiring harness installation bolt and nut shown in the figure.
    Fig 1: Main Fuse Block, Suspension Tower, Nut And Bolt With Torque Specification
    G13726528Courtesy of MAZDA MOTORS CORP.
  28. Disconnect the connectors and the wiring harnesses related to the engine removal/installation.
  29. Remove in the order indicated in the table.
  30. Install in the reverse order of removal.
  31. Start the engine. And inspect and adjust the following:
    • Front wheel alignment (See FRONT WHEEL ALIGNMENT .)
    • Power steering fluid air bleeding (See AIR BLEEDING .)
    • Leakage of engine oil, engine coolant, ATF, transaxle oil, and fuel.
    • Runout and contact of pulley and belt.
    • Verify the ignition timing, idle speed and idle mixture. (See ENGINE TUNE-UP .)
    • Engine-driven accessories operation.
Fig 2: Engine Components With Torque Specification
G13726529Courtesy of MAZDA MOTORS CORP.
PART DESCRIPTION

1 Battery tray bracket
2 No. 1 engine mount rubber, front crossmember component
(See NO. 1 ENGINE MOUNT RUBBER, FRONT CROSSMEMBER COMPONENT REMOVAL NOTE .)
(See ENGINE MOUNT INSTALLATION NOTE .)
3 No. 4 engine mount rubber
(See NO. 3 ENGINE MOUNT, NO. 4 ENGINE MOUNT RUBBER REMOVAL NOTE .)
(See ENGINE MOUNT INSTALLATION NOTE .)
4 No. 3 engine mount
(See NO. 3 ENGINE MOUNT, NO. 4 ENGINE MOUNT RUBBER REMOVAL NOTE .)
(See ENGINE MOUNT INSTALLATION NOTE .)
5 Engine, transaxle
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