Showing specs for all NA & NB Miatas

Engine oil drain plug (NB2)

22–30 ft·lb30–41 N·m30–41 N·m22–30 ft·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Replace the drain plug washer. Engine stand mounting procedure; also follow the vehicle manual washer replacement instruction.

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. 715
    22–30 ft·lb (30–41 N·m)
    Printed: “30—41 N·m {3.0—4.2 kgf·m, 22—30 ft·lbf}”
  • 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turboTier 1
    Part no. 9999-95-EWBP-04
    Page 01–10–2 (PDF p. 14)
    22–30 ft·lb (30–41 N·m)
    Printed: “30—41 N·m {3.0—4.2 kgf·m, 22—30 ft·lbf}”
    BP WITH TC (Mazdaspeed) applicability; the normally aspirated BP workshop content does not establish applicability to the VVT engine.