Showing specs for all NA & NB Miatas

Generator belt deflection — used (NB1)

6.0—7.5 {0.24—0.29} mm {in}6.0—7.5 {0.24—0.29} mm {in}

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

Check engine cold or at least 30 min after stopping. New means used on a running engine for less than five minutes. Apply 98 N {10 kgf, 22 lbf} midway between the specified pulleys. Deflection limit is a maximum.

Applies to
  • NB 1999–2000 (BP-4W) — Other years inferred from 1999 factory evidence.
  • Verified in: 1999 Mazda MX-5 Miata Workshop Manual