Flywheel Inspection

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Remove the flywheel.
NOTE:
- Correct slight scratches and discoloration using sandpaper.
  
  Fig 1: Sanding Flywheel Surface
  Courtesy of MAZDA MOTORS CORP.
- Inspect the runout of the surface that contacts the clutch disc with the flywheel installed to the crankshaft.
Inspect the surface that contacts the clutch disc for scratches, nicks, and discoloration.
Inspect the ring gear teeth for damage and wear.
Install the flywheel.
Measure the runout of the surface that contacts the clutch disc using a dial gauge.
1. Maximum runout 0.1 mm {0.004 in}
- If it exceeds the maximum specification, replace the flywheel.
Fig 2: Measuring Runout Of Flywheel Surface
Courtesy of MAZDA MOTORS CORP.