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Engine Mount Installation Note

CAUTION:
  • Slots have been adopted for the No. 3 engine mount and No. 4 engine mount bracket installation holes. Tighten the installation bolts and nuts so that they are centered on the slots. Otherwise, engine noise or vibration could increase.
NOTE:
  • When loosening the nuts of the No. 3 engine mount and the No. 4 engine mount bracket, the engine front cover and the transaxle stud bolt may loosen.
  1. Tighten the engine front cover stud bolts.
    G11436692Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    7-13 N.m {72-132 kgf.cm, 62-115 in.lbf}

  2. Tighten the transaxle stud bolts.
    G11436662Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    15-25 N.m {1.6-2.5 kgf.m, 12-18 ft.lbf}

    CAUTION:
    • When supporting the engine and transaxle, insert rubber of appropriate size (approx. 20 mm {0.79 in} thickness) between the engine lifter and the oil pan, transaxle to prevent the deformation of the oil pan and damage of the transaxle.
  3. Secure the engine and transaxle using a commercially available engine lifter.
    G09074309Courtesy of MAZDA MOTORS CORP.
  4. Temporarily tighten the No. 3 engine mount installation bolts and nuts using the following procedure:
    1. Temporarily tighten the bolts shown in the figure so that they are centered on the No. 3 engine mount slots.
      G11436695Courtesy of MAZDA MOTORS CORP.
    2. Temporarily tighten the nuts shown in the figure so that the stud bolts of the engine front cover are centered on the No. 3 engine mount slots.
      G11436696Courtesy of MAZDA MOTORS CORP.
      NOTE:
      • If the stud bolts are deviated from the center of the slots, align the stud bolts with the center of the slots while slightly moving the engine, and temporarily tighten the installation nuts.
  5. Temporarily tighten the No. 4 engine mount bracket installation bolt and nuts using the following procedure:
    1. Temporarily tighten the bolt shown in the figure.
      G11436697Courtesy of MAZDA MOTORS CORP.
    2. Temporarily tighten the nuts shown in the figure so that they are centered on the No. 4 engine mount bracket slots.
      G11436698Courtesy of MAZDA MOTORS CORP.
      NOTE:
      • If the stud bolts are deviated from the center of the slots, align the stud bolts with the center of the slots while slightly moving the transaxle, and temporarily tighten the installation nuts.
  6. Install the No. 1 engine mount rubber and the front crossmember component as a single unit. (See FRONT CROSSMEMBER REMOVAL/INSTALLATION .)
  7. Temporarily tighten the following parts:

    2WD 

    • No. 1 engine mount bracket, No. 1 engine mount rubber and bracket plate
      G11436699Courtesy of MAZDA MOTORS CORP.

      AWD 

    • No. 1 engine mount rubber, bracket plate and deadweight
    G11436700Courtesy of MAZDA MOTORS CORP.
  8. Tighten the No. 1 engine mount bracket and bracket plate installation bolts in the order shown in the figure. (2WD)
    Fig 1: No. 1 Engine Mount Bracket, Bracket Plate And Bolts Tightening Sequence (2WD)
    G11436701Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    131-153 N.m {14-15 kgf.m, 97-112 ft.lbf}

  9. Tighten the No. 3 engine mount installation bolts and nuts in the order shown in the figure.
    Fig 2: No. 3 Engine Mount, Bolts And Nuts Tightening Sequence
    G11436702Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    TORQUE SPECIFICATION

    No. Tightening torque
    1 76-95 N.m {7.8-9.6 kgf.m, 57-70 ft.lbf}
    2 82-95 N.m {8.4-9.6 kgf.m, 61-70 ft.lbf}
    3 49-65 N.m {5.0-6.6 kgf.m, 37-47 ft.lbf}
  10. Tighten the No. 4 engine mount bracket installation bolt and nuts in the order shown in the figure.
    Fig 3: No. 4 Engine Mount Bracket, Bolts And Nuts Tightening Sequence
    G11436703Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    TORQUE SPECIFICATION

    No. Tightening torque
    1, 2, 3 92-116 N.m {9.4-11 kgf.m, 68-85 ft.lbf}
    4 81-99 N.m {8.3-10 kgf.m, 60-73 ft.lbf}
  11. Tighten the No. 1 engine mount rubber installation bolts.

    2WD 

    Fig 4: No. 1 Engine Mount Rubber, Bracket Plate And Bolts With Torque Specification (2WD)
    G11436704Courtesy of MAZDA MOTORS CORP.

    AWD 

    Fig 5: No. 1 Engine Mount Rubber, Bracket Plate And Bolts With Torque Specification (AWD)
    G11436705Courtesy of MAZDA MOTORS CORP.
  12. Connect the clip shown in the figure.
    G11436690Courtesy of MAZDA MOTORS CORP.
  13. Install the ground cable shown in the figure.
    Fig 6: No. 3 Engine Mount, Ground Cable And Bolt With Torque Specification
    G11436707Courtesy of MAZDA MOTORS CORP.
  14. Return the cooler hose that was set aside to its original position and tighten the nut.
    Fig 7: Cooler Hose Nut With Torque Specification
    G11436708Courtesy of MAZDA MOTORS CORP.
  15. Install the PCM component using the following procedure:
    1. Return the PCM component that was set aside to its original position.
    2. Temporarily tighten the bolt shown in the figure.
      G11436709Courtesy of MAZDA MOTORS CORP.
    3. Tighten the PCM component installation bolts in the order shown in the figure.
      Fig 8: PCM Component Bolts Tightening Sequence
      G11436710Courtesy of MAZDA MOTORS CORP.

      Tightening torque 

      9-10 N.m {92-101 kgf.cm, 80-88 in.lbf}

    4. Install the wiring harness protector and connector.
      Fig 9: PCM Component, Wiring Harness Protector, Connector And Bolt With Torque Specification
      G11436711Courtesy of MAZDA MOTORS CORP.
    5. Connect the PCM connector (140-pin side) to the PCM. (See PCM REMOVAL/INSTALLATION .)
  16. Install the ground cable shown in the figure.
    Fig 10: PCM Component, Ground Cable, Clip And Bolt With Torque Specification
    G11436712Courtesy of MAZDA MOTORS CORP.
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