Showing specs for all NA & NB Miatas

Rear main seal / clutch

Rear seal cover and flywheel hardware, with clutch and transmission access linked separately.

Use this checklist to track fasteners you handle. It is not a complete repair procedure or a verified disassembly order. Follow your factory manual for access, support, tightening sequences and inspections. Select your car and check each variant before using a value.

Checklist: https://miatatorque.com/jobs/rear-main-seal/
All NA & NB variants; select your car to narrow the list.

Job applicability: NA (5MT); NB (5MT/6MT)

You’ll replace

No replacement list is recorded in these specs. Check the cited procedures for seals, gaskets and single-use hardware.

Fluids & settings

Fluid types, capacities and settings have not been catalogued for this job. Check your factory manual before filling or adjusting.

1. Seal cover and end plate

The recorded rear seal housing bolts cover NA 1994–97 only; end plate bolts cover NA 1990–93. Seal housing hardware for other variants is not yet catalogued.

Rear cover (rear main seal housing) bolts
NA 1994–1997 (BP)
Factory manual70–95 in·lbin·lb7.9–10.7 N·m7.9–10.7 N·m70–95 in·lb
  • 1994 Mazda MX-5 Miata Workshop Manual — Page B–66Printed: “7.9–10.7 N·m (80–110 kgf·cm, 70–95.4 in·lbf)”
Engine end plate bolts
NA 1990–1993 (B6)
Factory manual69–95 in·lbin·lb7.8–11 N·m7.8–11 N·m69–95 in·lb
  • 1990 Mazda MX-5 Miata Workshop Manual — Page B–66Printed: “7.8—11 N·m (80—110 cm-kg, 69—95 in-lb)”

2. Flywheel and clutch

Flywheel bolts
NA 1990–1997 (B6/BP); NB 1999–2000 (BP-4W)
Factory manual71–76 ft·lb96–103 N·m96–103 N·m71–76 ft·lb
Sealant
Sealant on the threads (wipe bolts clean first)
Sequence
Crisscross, 6 bolts
Notes
Hold the flywheel with SST 49 E301 060.
  • 1990 Mazda MX-5 Miata Workshop Manual — Page H–16Printed: “96—103 N·m (9.8—10.5 m-kg, 71—76 ft-lb)”
  • 1994 Mazda MX-5 Miata Workshop Manual — Page B–68Printed: “97–102 N·m (9.8–10.5 kgf·m, 71–75.9 ft·lbf)”
  • 1994 Mazda MX-5 Miata Workshop Manual — Page H–15Printed: “97–102 N·m (9.8–10.5 kgf·m, 71–75.9 ft·lbf)”
  • 1999 Mazda MX-5 Miata Workshop Manual — Page 05–10–11Printed: “97–102 N·m {9.8–10.5 kgf·m, 71–75 ft·lbf}”
Clutch cover (pressure plate) bolts
NA 1990–1997 (B6/BP); NB 1999–2000 (BP-4W)
Factory manual13–20 ft·lb18–26 N·m18–26 N·m13–20 ft·lb
Sequence
Evenly and gradually, crisscross, 6 bolts
Notes
Align the dowel holes with the flywheel dowels.
  • 1990 Mazda MX-5 Miata Workshop Manual — Page H–17Printed: “18—26 N·m (1.8—2.7 m-kg, 13—20 ft-lb)”
  • 1994 Mazda MX-5 Miata Workshop Manual — Page B–68Printed: “18–26 N·m (1.8–2.7 kgf·m, 14–19 ft·lbf)”
  • 1994 Mazda MX-5 Miata Workshop Manual — Page H–17Printed: “18–26 N·m (1.8–2.7 kgf·m, 14–19 ft·lbf)”
  • 1999 Mazda MX-5 Miata Workshop Manual — Page 05–10–12Printed: “18–26 N·m {1.8–2.7 kgf·m, 14–19 ft·lbf}”
Flywheel bolts (NB2)
NB 2001–2005 (BP-Z3, 5MT/6MT); NB 2004–2005 (BP-Z3-TURBO, 6MT)
Factory manual71–75 ft·lb97–102 N·m97–102 N·m71–75 ft·lb
Notes
Clean bolts and apply sealant to threads. Tighten in the illustrated pattern. Apply sealant as illustrated.
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture) — Page PDF p. 1486Printed: “97—102 N·m {9.8—10.5 kgf·m, 71—75 ft·lbf}”
  • 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo — Page 01–10–11 (PDF p. 23)Printed: “97—102 N·m {9.8—10.5 kgf·m, 71—75 ft·lbf}”BP WITH TC (Mazdaspeed) applicability; the normally aspirated BP workshop content does not establish applicability to the VVT engine.
Clutch cover bolts (NB2)
NB 2001–2005 (BP-Z3, 5MT/6MT); NB 2004–2005 (BP-Z3-TURBO, 6MT)
Factory manual14–19 ft·lb18–26 N·m18–26 N·m14–19 ft·lb
Notes
Tighten evenly and gradually in the illustrated pattern.
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture) — Page PDF p. 1487Printed: “18—26 N·m {1.8—2.7 kgf·m, 14—19 ft·lbf}”

Related jobs

Clutch replacementOil pan resealing