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Engine Disassembly/Assembly: Notes

CAUTION:
  • When the transaxle is installed, do not suspend the engine. Otherwise, the SST  installation area of the cylinder head may be damaged due to excess weight. Only suspend the engine after separating the engine and transaxle.
  • 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.
  1. To enable to install the SST  , disconnect the clip shown in the figure and set the wiring harness aside.
    Fig 1: Identifying Wiring Harness
    G10959857Courtesy of MAZDA MOTORS CORP.
  2. Install the SST  using part number 99794 1025 or an M10 x 1.25, length 25 mm {0.98 in} bolt as shown in the figure.
    Fig 2: Installing SST Using Part Number (99794 1025)
    G10959858Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    • 38-51 N.m {3.9-5.2 kgf.m, 29-37 ft.lbf}
  3. Engage the hooks of the SST (49 L017 5A0)  to the SST (49 UN30 3050)  .
    Fig 3: Securing SST (49 L017 5A0) Hooks To SST (49 UN30 3050)
    G10959860Courtesy of MAZDA MOTORS CORP.
  4. To ensure the safety of the work (control engine and transaxle sway), set a hoist as shown in the figure.
    Fig 4: Setting Hoist
    G10959861Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not lift up the engine.
  5. Remove the insulator shown in the figure.
    Fig 5: Removing Insulator
    G10959862Courtesy of MAZDA MOTORS CORP.
  6. Remove the exhaust system. (See EXHAUST SYSTEM REMOVAL/INSTALLATION .)
  7. Remove the bolts in the order shown in the figure, then remove the exhaust manifold bracket.
    Fig 6: Exhaust Manifold Bracket Bolts Loosening Sequence
    G10959863Courtesy of MAZDA MOTORS CORP.
    • When installing, tighten the bolts in the reverse order of removal.

      Tightening torque 

    • 38-51 N.m {3.9-5.2 kgf.m, 29-37 ft.lbf}
  8. Remove the bracket No. 1 (drive shaft bracket). (See FRONT DRIVE SHAFT REMOVAL/INSTALLATION .)
  9. Remove the starter. (See STARTER REMOVAL/INSTALLATION .)
  10. Fix the drive plate using the crankshaft pulley lock bolt. (ATX)
  11. Remove the torque converter installation nut from the starter installation hole. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FW6A-EL] .)
  12. Disconnect the engine and transaxle, and lower only the engine from the engine lifter. (See MANUAL TRANSAXLE REMOVAL/INSTALLATION [C66M-R] (MTX).) (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FW6A-EL] (ATX).)
  13. Remove the generator. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)] .) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITH i-ELOOP)] .)
  14. Remove the intake-air system. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  15. Remove the fuel injectors. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
  16. Remove the camshaft position (CMP) sensor. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION .)
  17. Remove the vacuum pump. (See VACUUM PUMP REMOVAL/INSTALLATION .)
  18. Remove the high pressure fuel pump and rear housing. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION .)
  19. Remove the oil filter. (See OIL FILTER REPLACEMENT .)
  20. Remove the engine oil solenoid valve. (See ENGINE OIL SOLENOID VALVE REMOVAL/INSTALLATION .)
  21. Remove the crankshaft position (CKP) sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION .)
  22. Remove the ignition coil/ion sensors. (See IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION .)
  23. Remove the wiring harness bracket shown in the figure.
    Fig 7: Removing Wiring Harness Bracket
    G10959865Courtesy of MAZDA MOTORS CORP.
  24. Remove the emission harness.
  25. Remove the water pump drive belt. (See DRIVE BELT REMOVAL/INSTALLATION .)
  26. Remove the clutch cover and clutch disc. (MTX) (See CLUTCH UNIT REMOVAL/INSTALLATION [C66M-R] .)
  27. Remove in the order indicated in the table
  28. Assemble in the reverse order of disassembly.
    Fig 8: Identifying Exhaust Manifold Bracket Bolt With Torque Specifications
    G10959866Courtesy of MAZDA MOTORS CORP.
    COMPONENT DESCRIPTION

    1 Oil filter body
    (See OIL FILTER BODY INSTALLATION NOTE .)
    2 Exhaust manifold bracket
    (See EXHAUST MANIFOLD BRACKET INSTALLATION NOTE .)
    3 A/C compressor* (without A/C)

    This is the A/C compressor for vehicles without A/C and it functions as the idler of the drive belt. This does not function as the A/C compressor for vehicles with A/C  .

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