Mazdaspeed main bearing support plate bolts (NB2)
This spec doesn't apply to the car you selected.
Not yet checked against the factory manual for your car's year. It's verified in the 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo; later manuals may differ.
12–15 ft·lb15.7–20.6 N·m15.7–20.6 N·m12–15 ft·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure
Apply silicone sealant inside bolt holes and install within five minutes. Tighten in two or three steps in order on PDF p. 25.
Applies to
- NB 2004–2005 (BP-Z3-TURBO, 6MT)
- Verified in: 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo
Sources
- 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turboTier 1Part no. 9999-95-EWBP-04Page 01–10–11 (PDF p. 23)12–15 ft·lb (15.7–20.6 N·m)Printed: “15.7—20.6 N·m {1.6—2.1 kgf·m, 12—15 ft·lbf}”BP WITH TC (Mazdaspeed) applicability; the normally aspirated BP workshop content does not establish applicability to the VVT engine.