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HOMESERVICE MANUALSMAZDA20133 MAZDASPEED, 2.3L ENG VIN 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 33 (MANUAL TRANSAXLE CLUTCH [G66M-R])FLYWHEEL INSPECTION
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3

Flywheel Inspection

2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3SECTION Flywheel Inspection
WARNING: This page is about a different variant/trim than selected.
  1. Perform the following procedures.
    1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
    2. Disconnect the negative battery cable.
    3. Remove the battery component. (ex: battery, battery tray and PCM component) (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
    4. Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
    5. Remove the exhaust manifold insulator installation bolts and set the exhaust manifold insulator aside.
    6. Remove the exhaust manifold bracke. (See EXHAUST SYSTEM REMOVAL/INSTALLATION .)
    7. Remove the front splash shield. (See SPLASH SHIELD REMOVAL/INSTALLATION .)
    8. Remove the aerodynamic under cover No.2. (See AERODYNAMIC UNDER COVER NO.2 REMOVAL/INSTALLATION .)
    9. Remove the starter. (See STARTER REMOVAL/INSTALLATION .)
    10. Drain the transaxle oil into a suitable container. (See TRANSAXLE OIL REPLACEMENT .)
    11. Remove the manual transaxle. (See MANUAL TRANSAXLE REMOVAL/INSTALLATION .)
    12. Remove the clutch cover and clutch disc. (See CLUTCH UNIT REMOVAL/INSTALLATION .)
  2. Measure the runout of the surface that contacts the clutch disc using a dial gauge.
    Fig 1: Measuring Flywheel Surface Runout
    G08157114

    Flywheel maximum runout 

    • 0.1 mm {0.004 in}
  3. Remove the flywheel. (See CLUTCH UNIT REMOVAL/INSTALLATION .)
  4. Inspect the ring gear teeth for damage and wear.
  5. Inspect the surface that contacts the clutch disc for scratches, nicks, and discoloration.
    1. If there is any malfunction, correct slight scratches and discoloration using sandpaper.
      Fig 2: Correcting Slight Scratches And Discoloration Using Sandpaper
      G08157115
  6. Measure the flatness of the flywheel with a straight edge and a feeler gauge.
    Fig 3: Measuring Flatness Of Flywheel With Straight Edge And Feeler Gauge
    G08157116
    • If there is any malfunction, replace the flywheel.

    Maximum clearance of flatness of the flywheel 

    • 0.06 mm {0.002 in}
RENDER: 1.0x

NO RELATED

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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.