Showing specs for all NA & NB Miatas

Clutch disc runout — maximum

0.7 mm (0.028 in), maximum

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Measure with a dial indicator while supporting the disc on a shaft as specified in the inspection procedure. Replace if runout exceeds the limit.

Applies to
  • NB 2001–2005 (BP-Z3, 5MT/6MT) — Other years in this family inferred from 2005 factory evidence with owner approval; actual-year verification is separate.
  • Verified in: 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)
Sources
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page PDF p. 1498
    Printed: “Maximum runout 0.7 mm {0.028 in}”

Also in Additional factory manual gap audit