Showing specs for all NA & NB Miatas

Camshaft end play — standard and maximum (NA6)

End play: 0.0028–0.0075 in (0.07–0.19 mm) Maximum: 0.008 in (0.20 mm)End play: 0.07–0.19 mm (0.0028–0.0075 in) Maximum: 0.20 mm (0.008 in)

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

Measure with a dial indicator; replace the camshaft and/or cylinder head if end play exceeds specification.

Applies to
  • NA 1990–1993 (B6) — Other years inferred from 1990 factory evidence.
  • Verified in: 1990 Mazda MX-5 Miata Workshop Manual