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Engine Removal/Installation: Notes

WARNING: This page is about a different variant/trim than selected.
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 .)
NOTE:
  • Perform the engine and transaxle component removal/installation from below the vehicle.
  1. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [MZR 2.5] .)
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  3. Remove the air hose and air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  4. Set the cooler pipe and the cooler hose (LO) out of the way. (See REFRIGERANT LINE REMOVAL/INSTALLATION .)
  5. Disconnect the brake vacuum hose. (See VACUUM HOSE REMOVAL/INSTALLATION .)
  6. Remove the front wheels and tires. (See GENERAL PROCEDURES (SUSPENSION) .)
  7. Set the front mudguards out of the way. (See FRONT MUDGUARD REMOVAL/INSTALLATION .)
  8. Remove the splash shields.
  9. Remove the aerodynamic under cover No. 1 and No. 2. (See AERODYNAMIC UNDER COVER NO. 1 REMOVAL/INSTALLATION .) (See AERODYNAMIC UNDER COVER NO. 2 REMOVAL/INSTALLATION .)
  10. Remove the drive belt. (See DRIVE BELT REMOVAL/INSTALLATION .)
  11. Remove the TWC. (See EXHAUST SYSTEM REMOVAL/INSTALLATION .)
  12. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  13. Remove the coolant reserve tank. (See COOLANT RESERVE TANK REMOVAL/INSTALLATION .)
  14. Drain the ATF (ATX) or transaxle oil (MTX). (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT .) (ATX) (See TRANSAXLE OIL REPLACEMENT .) (MTX)
  15. Disconnect the drive shafts from the engine side, set the drive shafts out of the way. (See DRIVE SHAFT REMOVAL/INSTALLATION .)
  16. Disconnect the radiator hose. (See RADIATOR REMOVAL/INSTALLATION .)
  17. Disconnect the vacuum hose and the heater hose.
  18. Disconnect the oil hose, selector cable, and wiring harness. (ATX) (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION .)
  19. Disconnect the shift cable and wiring harness. (MTX) (See MANUAL TRANSAXLE REMOVAL/INSTALLATION .)
  20. Remove the clutch release cylinder with the pipe still connected. (MTX) (See CLUTCH RELEASE CYLINDER REMOVAL/INSTALLATION .)
  21. Disconnect the fuel hose. (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
  22. Remove the A/C compressor with the pipes still connected. (See A/C COMPRESSOR REMOVAL/INSTALLATION .)
  23. Remove the wiring harness installation bolt and nuts shown in the illustration.
  24. Disconnect the wiring harness from the engine side.
  25. Remove in the order indicated in the table.
  26. Install in the reverse order of removal.
  27. Start the engine. And inspect and adjust the following:
    • 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.
    NOTE:
    • If the engine is overhauled and installed to the vehicle, perform the road test and verify that there is no abnormality.
      Fig 1: Fuse Block And Mounting Bolt
      G06199843Courtesy of MAZDA MOTORS CORP.
Fig 2: Engine Mount, Engine Mount Bolt And Engine Mount Bracket
G07620419Courtesy of MAZDA MOTORS CORP.
ENGINE MOUNT REFERENCE CHART

1 No. 1 engine mount
(See NO. 1 ENGINE MOUNT REMOVAL NOTE .)
(See ENGINE MOUNT INSTALLATION NOTE .)
2 No. 4 engine mount bolt
(See NO. 3 ENGINE MOUNT BRACKET, NO. 4 ENGINE MOUNT BOLT REMOVAL NOTE .)
(See ENGINE MOUNT INSTALLATION NOTE .)
3 No. 3 engine mount bracket
(See NO. 3 ENGINE MOUNT BRACKET, NO. 4 ENGINE MOUNT BOLT REMOVAL NOTE .)
(See ENGINE MOUNT INSTALLATION NOTE .)
4 Engine, transaxle
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