Showing specs for all NA & NB Miatas

Intake manifold upper section bolts (NB2)

≈14–18 ft·lb19–25 N·m19–25 N·m≈14–18 ft·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Replace gasket. Inconsistent printed unit(s) omitted from structured torque: ftlb. Use printed N·m; inconsistent secondary units do not change the factory N·m value.

Applies to
  • NB 2001–2005 (BP-Z3)
  • NB 2004–2005 (BP-Z3-TURBO)
  • 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. 764
    ≈14–18 ft·lb (19–25 N·m)
    Printed: “19—25 {1.9—2.6, 14—18} N·m {kgf·m, ft·lbf}”
    Printed N·m is authoritative per owner instruction. Secondary-unit misprints are preserved in as_printed but omitted from structured torque.