Showing specs for all NA & NB Miatas

Timing belt tensioner and idler bolts (NB2)

≈28–38 ft·lb38–51 N·m38–51 N·m≈28–38 ft·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Follow belt tensioning procedure on pp. 672–676. Figure mixes kgf·m/ft·lbf magnitudes with a kgf·cm/in·lbf legend.

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); 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo
Sources
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page PDF p. 670
    ≈28–38 ft·lb (38–51 N·m)
    Printed: “38-51 {3.8-5.2, 28-37}; figure legend: N·m {kgf·cm, in·lbf}”
  • 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turboTier 1
    Part no. 9999-95-EWBP-04
    Page 01–10–3 (PDF p. 15)
    28–38 ft·lb (38–51 N·m)
    Printed: “38—51 N·m {3.8—5.3 kgf·m, 28—38 ft·lbf}”
    BP WITH TC (Mazdaspeed) applicability; the normally aspirated BP workshop content does not establish applicability to the VVT engine.

Also in Timing belt & pulleys