No.3 Engine Mount Nut Installation Note

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION No.3 Engine Mount Nut Installation Note
WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION:
    • If the clearances A and B of the No.3 engine joint bracket are out of specifications, engine vibration and noise can increase. Make sure that the clearances are within the specifications.
  1. Install all engine mounts and verify that clearances A and B of the No. 3 engine joint bracket are within the specifications.
    • If not as specified, reassembled the engine mounts, according to the following procedure.

      Specifications 

      A: 23.5-26.5 mm (0.926-1.04 in} 

      B: 19.5-22.5 mm {0.768-0.0885 in} 

      Fig 1: Verifying No. 3 Engine Joint Bracket Clearances A & B
      G00993571Courtesy of MAZDA MOTORS CORP.
    1. Remove the No. 3 joint bracket. (See ENGINE MOUNT MEMBER REMOVAL NOTE .)
    2. Loosen the No. 1 and No. 4 engine mount through bolts.
    3. Before tightening the No.1 and No.4 engine mount through bolts to fix the engine, position the engine so that the clearances A and B of the No.3 joint bracket are approximately within the specifications.
      NOTE:
      • Slight displacement can be adjusted with the adjusting holes of the No. 3 engine joint bracket.
    4. Tighten the No. 1 No. 4 engine mount through bolts.
    5. Install the No. 3 engine joint bracket so that clearances A and B are within the specifications.
      Fig 2: Identifying No. 3 Engine Joint Bracket Adjusting Holes
      G00993572Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.