Showing specs for all NA & NB Miatas

Cylinder head manifold contact-face distortion (NA8)

Distortion: 0.006 in (0.15 mm) max.Distortion: 0.15mm {0.006 in} max.

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

Measure the cylinder-head manifold contact surfaces in the four factory-specified directions; this is the head face, not the manifold casting.

Applies to
  • NA 1994–1997 (BP) — Other years inferred from 1994 factory evidence.
  • Verified in: 1994 Mazda MX-5 Miata Workshop Manual