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HOMESERVICE MANUALSMAZDA20083 S TOURING, 4D HATCHBACK, 2.3 4, STANDARDREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALENGINE MECHANICAL - OVERHAUL - (LF, L3)CYLINDER BLOCK (I) ASSEMBLYBALANCER UNIT ASSEMBLY NOTE
2008 Mazda 3 s Touring, 4D Hatchback, 2.3 4, Standard

Balancer Unit Assembly Note

2008 Mazda 3 s Touring, 4D Hatchback, 2.3 4, StandardSECTION Balancer Unit Assembly Note
  1. Confirm by visual inspection that there is no damage to the balancer unit gear (see Figure) and verify that the shaft turns smoothly.
    • If there is any damage or malfunction, replace the balancer unit.
    CAUTION:
    • Due to the precision interior construction of the balancer unit, it cannot be disassembled.
  2. Install the SST  as shown in the figure.
    Fig 1: Installing SST
    G02831641Courtesy of MAZDA MOTORS CORP.
  3. Turn the crankshaft clockwise the crankshaft is in the No.1 cylinder TDC position (until the balance weight is attached to the SST  ).
  4. Install the adjustment shim to the seat face of the balancer unit.
  5. With the balancer unit marks at the exact top center, assemble the unit to the cylinder block.
    Fig 2: Identifying Balancer Unit Marks
    G02831642Courtesy of MAZDA MOTORS CORP.
  6. Set the SST  as shown, then measure the gear backlash using a dial gauge.
    Fig 3: Measuring Gear Backlash
    G02831643Courtesy 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.