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Home >> Mazda >> 2021 >> MX-5 Miata Club, Standard Trans >> Repair and Diagnosis >> Transmission >> Manual Trans >> Manual Transmission System >> Power Plant Frame Installation

Power Plant Frame Installation

CAUTION:
  • The stud bolt shown in the figure is pressed into the power plant frame. Read the cautions carefully so as not to damage the parts while servicing.
G11279492Courtesy of MAZDA MOTORS CORP.
  1. Install the washers.
    G11279493Courtesy of MAZDA MOTORS CORP.
  2. Install the bolt.
    G11279494Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    5.0-9.0 N.m {51-91 kgf.cm, 45-79 in.lbf}

  3. Install the stud bolt to the differential.
    G11279495Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    25-35 N.m {2.6-3.5 kgf.m, 19-25 ft.lbf}

  4. Verify that the projection amount of the stud bolt is within the specification.

    Specification 

    36.5-38.5 mm {1.44-1.51 in}

  5. Assemble the power plant frame from the rear differential side and temporarily tighten all the nuts.
    G11279496Courtesy of MAZDA MOTORS CORP.
  6. Tighten the nut shown in the figure to the specified torque.
    G11279497Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}

  7. Tighten the nut shown in the figure to the specified torque.
    G11279498Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}

  8. Retighten the nut shown in the figure to the specified torque.
    G11279499Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}

  9. Install the nuts shown in the figure in the following order.
    G11279500Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}

    1. Tighten the nut (front side) to the specified torque.
    2. Tighten the nut (rear side) to the specified torque.
    3. Retighten the nut (front side) to the specified torque.
  10. Install the tunnel member.
    Fig 1: Tunnel Member Bolts With Torque Specification
    G11279501Courtesy of MAZDA MOTORS CORP.
  11. Adjust the height of the transmission using a transmission jack, and verify that the power plant frame installation position is within the specification.

    Specification 

    • Between bottom surface of power plant frame and top surface of tunnel member: 22.4-28.4 mm {0.89-1.11 in}
    G11279502Courtesy of MAZDA MOTORS CORP.
  12. Tighten the nuts (4 locations) on the transmission side.
    G11279503Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    135-164 N.m {14-16 kgf.m, 100-120 ft.lbf}

  13. Remove the rubber or rag from the transmission jack and between the rear differential and rear crossmember.
  14. Verify that the power plant frame installation position is within the specification indicated in Step 11.
    • If not within the specification, repeat from Step  11.
  15. Install the member bracket. (With member bracket)
Fig 2: Member Bracket Bolts With Torque Specification
G11279504Courtesy of MAZDA MOTORS CORP.