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Home >> Mazda >> 2017 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Exhaust System Removal/Installation >> Exhaust Manifold Removal Note

Exhaust Manifold Removal Note

  1. Remove the bolt shown in the figure below and set the ground cable aside.
    Fig 1: Identifying Washer Tank, Ground Cable And Bolt
    G11274357Courtesy of MAZDA MOTORS CORP.
  2. Remove the front suspension tower bar. (With front suspension tower bar) (See FRONT SUSPENSION TOWER BAR REMOVAL/INSTALLATION ).
  3. Remove the front wheels and tires. (See GENERAL PROCEDURES (SUSPENSION) ).
  4. Remove the fasteners shown in the figure below and slightly bend back the front mudguard No. 2.

    RH

    Fig 2: Identifying Front Mudguard No. 2 And Fasteners (RH)
    G11274358Courtesy of MAZDA MOTORS CORP.

    LH

    Fig 3: Identifying Front Mudguard No. 2 And Fasteners (LH)
    G11274359Courtesy of MAZDA MOTORS CORP.
  5. Remove the front splash shield No. 1. (See FRONT SPLASH SHIELD NO. 1 REMOVAL/INSTALLATION ).
  6. Remove the front crossmember under cover. (See FRONT CROSSMEMBER UNDER COVER REMOVAL/INSTALLATION ).
  7. Remove the bolts shown in the figure below.

    RH

    Fig 4: Identifying Exhaust Manifold Bolts (RH)
    G11274360Courtesy of MAZDA MOTORS CORP.

    LH

    Fig 5: Identifying Exhaust Manifold Bolts (LH)
    G11274361Courtesy of MAZDA MOTORS CORP.
  8. Remove the nut shown in the figure below.
    Fig 6: Identifying Exhaust Manifold Nut
    G11274362Courtesy of MAZDA MOTORS CORP.
  9. Disconnect the hose clip shown in the figure below.
    Fig 7: Disconnecting Hose Clip
    G11274363Courtesy of MAZDA MOTORS CORP.
  10. Remove the bolts shown in the figure below.
    Fig 8: Identifying Exhaust Manifold Bolts
    G11274364Courtesy of MAZDA MOTORS CORP.
  11. Install the SST to the position shown in the figure below using the following bolt.
    Fig 9: Identifying SST And Cylinder Head Cover
    G11274365Courtesy of MAZDA MOTORS CORP.

    Bolt:

    part number 99794 1025 or an M10 x 1.25, length 25 mm {0.98 in}

    Tightening torque

    33-53 N.m {3.4-5.4 kgf.m, 25-39 ft.lbf}

  12. Install the SST (49 E017 5A0) to the SST (49 UN30 3050) and engine hanger, then set them as shown in the figure below.
    Fig 10: Installing SST (49 E017 5A0) To SST (49 UN30 3050) And Engine Hanger
    G11274366Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • Use 2 shafts as shown in the figure below to lift up the engine on the left and right sides equally.
  13. Rotate the shaft of the SST (49 E017 5A0) to support the engine.
  14. Lift up the engine until the engine mount rubber is slightly raised above the front crossmember and verify again that the engine is securely hung.
  15. Push the position shown in the figure below and move the engine toward the left side of the vehicle.
    Fig 11: Moving Engine Toward Left Side Of Vehicle
    G11274367Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • The exhaust manifold can be removed by securing a space for removal. Therefore, the procedure is divided into one person moving the engine and one person removing the exhaust manifold.
  16. Remove the exhaust manifold.
Fig 12: Removing Exhaust Manifold
G11274368Courtesy of MAZDA MOTORS CORP.