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Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical System (VIN Y)) >> Timing Chain Removal/Installation >> No. 3 Engine Mount Removal Note

No. 3 Engine Mount Removal Note

WARNING: This page is about a different variant/trim than selected.
  1. Remove the coolant reserve tank. (See COOLANT RESERVE TANK REMOVAL/INSTALLATION .)
  2. To enable installation of the SST, remove the bolts and clip shown in the figure and set the wiring harness bracket aside.
    G13713169Courtesy of MAZDA MOTORS CORP.
  3. Remove the fuel hose and the vacuum hose from the hose clamp and the clip shown in the figure.
    G13713170Courtesy of MAZDA MOTORS CORP.
  4. Remove the protector.
    G13713171Courtesy of MAZDA MOTORS CORP.
  5. Install the SST using part number 99794 1025 or an M10-1.25, length 25 mm {0.98 in} bolt as shown in the figure.

    Engine front side 

    Fig 1: Intake Manifold, SST Bolt With Torque Specification (Engine Front Side)
    G13713172Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Slots have been adopted for the No. 3 engine mount installation holes. If the No. 3 engine mount is deviated from the original position when installing the No. 3 engine mount, engine noise or vibration could increase. Before removing the No. 3 engine mount, place alignment marks on the No. 3 engine mount and body so that they can be assembled to the same positions as before removal.

    Engine rear side 

    Fig 2: SST Bolt With Torque Specification (Engine Rear Side)
    G13713173Courtesy of MAZDA MOTORS CORP.
  6. Place alignment marks on the locations shown in the figure so that they can be assembled to the same positions as before removal.
    G11436812Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • Paint so that the No. 3 engine mount is framed on the body side and the outline of the nut is framed on the No. 3 engine mount side.
  7. Install the SST using the following procedures.
    CAUTION:
    • Refer to the SST instruction manual for the basic handing procedure.
    NOTE:
    • Install front foot No. 2 to the left and right front shafts of the SST.
    G11436813Courtesy of MAZDA MOTORS CORP.
    1. Protect the positions shown in the figure using tape.
      G13713176Courtesy of MAZDA MOTORS CORP.
    2. As shown in the figure, set the rear shafts of the SST to the left and right shock absorber nuts.
      G13713177Courtesy of MAZDA MOTORS CORP.
    3. Set the front shafts of the SST (49 C017 5A0) as shown in the figure.
      G13713178Courtesy of MAZDA MOTORS CORP.
    4. Install the SST (49 L017 5A0) to the SST (49 C017 5A0) as shown in the figure.
      G13713179Courtesy of MAZDA MOTORS CORP.
    5. Install the SST (49 L017 5A0) to the SST (49 UN30 3050) with the hook of the SST (49 L017 5A0) facing outward.
      G13713180Courtesy of MAZDA MOTORS CORP.
    6. Adjust the height of the left and right side bars so that they are leveled, then tighten each part of the SST.
    7. Apply tension to the chain to support the engine and verify that the engine is securely hung.
  8. Remove the No. 3 engine mount.
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