Showing specs for all NA & NB Miatas

1990 Mazda Miata torque specs (NA)

Factory-cited torque and service specifications for the 1990 Mazda MX-5 Miata NA, grouped by system with values, variant restrictions and links to printed manual citations.

164 matching records. Some apply only to a particular engine, transmission, differential, ABS configuration or build date. Check each record’s restrictions and cited manual coverage.

All NA years19901991199219931994199519961997

Wheels & Tires (1)

Wheel lug nut
Wheels · NA 1990–1997; NB 1999–2000
65–87 ft·lb88–118 N·m88–118 N·m65–87 ft·lb

Brakes (12)

Rear caliper lock bolt
Rear brakes · NA 1990–1993
33–43 ft·lb45–59 N·m45–59 N·m33–43 ft·lb
Rear caliper bracket (mounting support) bolt
Rear brakes · NA 1990–1993
33–43 ft·lb45–59 N·m45–59 N·m33–43 ft·lb

Front Suspension (7)

Rear Suspension (4)

Steering (7)

Engine (21)

Camshaft cap bolts
Cylinder head & camshafts · NA 1990–1997 (B6/BP); NB 1999–2000 (BP-4W)
100–126 in·lbin·lb11.3–14.2 N·m11.3–14.2 N·m100–126 in·lb
Engine end plate bolts
Engine block & bottom end · NA 1990–1993 (B6)
69–95 in·lbin·lb7.8–11 N·m7.8–11 N·m69–95 in·lb
Engine hanger bolts
Engine mounts · NA 1994–1997 (BP); NA 1990–1993 (B6)
28–38 ft·lb38–51 N·m38–51 N·m28–38 ft·lb

Lubrication (9)

Cooling (9)

Fuel & Intake (12)

Air cleaner lower bracket bolt
Air cleaner · NA 1990–1993 (B6)
14–19 ft·lb19–25 N·m19–25 N·m14–19 ft·lb
Air cleaner bracket bolt (intake duct side)
Air cleaner · NA 1990–1993 (B6)
69–95 in·lbin·lb7.8–11 N·m7.8–11 N·m69–95 in·lb
Fuel pressure regulator bolts
Fuel rail & injectors · NA 1994–1997 (BP); NA 1990–1993 (B6)
70–95 in·lbin·lb7.9–10.7 N·m7.9–10.7 N·m70–95 in·lb
Injector harness and bracket fasteners
Fuel rail & injectors · NA 1990–1993 (B6)
69–95 in·lbin·lb7.8–11 N·m7.8–11 N·m69–95 in·lb
Fuel filler neck bracket bolt
Fuel tank & pump · NA 1990–1993 (B6)
22–31 in·lbin·lb2.4–3.5 N·m2.4–3.5 N·m22–31 in·lb
Intake manifold nuts and bolts
Intake manifold · NA 1990–1997 (B6/BP)
14–19 ft·lb19–25 N·m19–25 N·m14–19 ft·lb
Air valve mounting bolt
Throttle body & idle control · NA 1990–1993 (B6)
43–69 in·lbin·lb4.9–7.8 N·m4.9–7.8 N·m43–69 in·lb
ISC valve mounting bolt
Throttle body & idle control · NA 1990–1993 (B6)
25–35 in·lbin·lb2.8–4 N·m2.8–4 N·m25–35 in·lb

Exhaust (4)

Ignition & Electrical (14)

Alternator pulley nut
Alternator · NA 1990–1993 (B6)
43–72 ft·lb59–98 N·m59–98 N·m43–72 ft·lb
Alternator through bolt
Alternator · NA 1990–1993 (B6)
26–56 in·lbin·lb2.9–6.4 N·m2.9–6.4 N·m26–56 in·lb
Alternator front cover screw
Alternator · NA 1990–1993 (B6)
17–48 in·lbin·lb2–5.4 N·m2–5.4 N·m17–48 in·lb
Spark plug
Spark plugs · NA 1990–1997 (B6/BP); NB 1999–2000 (BP-4W)
11–17 ft·lb15–23 N·m15–23 N·m11–17 ft·lb
Starter front cover screw
Starter · NA 1990–1993 (B6)
36–67 in·lbin·lb4.1–7.5 N·m4.1–7.5 N·m36–67 in·lb
Starter through bolt
Starter · NA 1990–1993 (B6)
34–62 in·lbin·lb3.8–7.1 N·m3.8–7.1 N·m34–62 in·lb

Clutch (7)

Transmission (10)

Driveshaft & Differential (12)

Differential fill plug
Differential · NA 1990–1997; NB 1999–2000
29–40 ft·lb39–54 N·m39–54 N·m29–40 ft·lb
Differential drain plug
Differential · NA 1990–1997; NB 1999–2000
29–40 ft·lb39–54 N·m39–54 N·m29–40 ft·lb
Differential bearing cap bolts
Differential · NA 1990–1993 (B6)
50–66 ft·lb68–89 N·m68–89 N·m50–66 ft·lb
Differential bearing cap lock plate bolts
Differential · NA 1990–1993 (B6)
13–19 ft·lb18–25 N·m18–25 N·m13–19 ft·lb
Ring gear bolts (1990–93)
Differential · NA 1990–1993 (B6)
51–61 ft·lb69–83 N·m69–83 N·m51–61 ft·lb
Rear hub (axle) locknut
Rear hubs & driveshafts · NA 1990–1997
159–217 ft·lb216–294 N·m216–294 N·m159–217 ft·lb

Body & Interior (35)

A/C pipe bracket bolt (to radiator)
Air conditioning · NA 1990–1993 (B6)
69–95 in·lbin·lb7.8–11 N·m7.8–11 N·m69–95 in·lb
A/C cooling unit inlet pipe fitting
Air conditioning · NA 1990–1993 (B6)
7–14 ft·lb9.8–20 N·m9.8–20 N·m7–14 ft·lb
A/C cooling unit outlet pipe fitting
Air conditioning · NA 1990–1993 (B6)
14–22 ft·lb20–29 N·m20–29 N·m14–22 ft·lb
A/C expansion valve outlet pipe fitting
Air conditioning · NA 1990–1993 (B6)
22–25 ft·lb29–34 N·m29–34 N·m22–25 ft·lb
A/C condenser inlet fitting
Air conditioning · NA 1990–1993 (B6)
11–18 ft·lb15–25 N·m15–25 N·m11–18 ft·lb
A/C compressor line fittings
Air conditioning · NA 1990–1993 (B6)
7–12 ft·lb9.8–16 N·m9.8–16 N·m7–12 ft·lb
Front bumper reinforcement and bracket bolts
Bumpers · NA 1990–1993 (B6)
12–17 ft·lb16–23 N·m16–23 N·m12–17 ft·lb
Front bumper set plate bolt and nut
Bumpers · NA 1990–1993 (B6)
6–9 ft·lb7.8–12 N·m7.8–12 N·m6–9 ft·lb
Door checker bolts
Doors & windows · NA 1990–1993 (B6)
7–9 ft·lb8.8–13 N·m8.8–13 N·m7–9 ft·lb
Door lock assembly screws
Doors & windows · NA 1990–1993 (B6)
3–5 ft·lb4.2–6.2 N·m4.2–6.2 N·m3–5 ft·lb
Hood latch bolts
Hood & trunk · NB 1999–2000; NA 1990–1993 (B6)
70–95 in·lbin·lb7.9–10.7 N·m7.9–10.7 N·m70–95 in·lb
Trunk lid striker bolt
Hood & trunk · NB 1999–2000; NA 1990–1993 (B6)
70–95 in·lbin·lb7.9–10.7 N·m7.9–10.7 N·m70–95 in·lb
Hood hinge bolts
Hood & trunk · NA 1990–1993 (B6)
14–19 ft·lb19–25 N·m19–25 N·m14–19 ft·lb
Dashboard mounting bolts
Interior · NA 1990–1993 (B6)
6–9 ft·lb7.8–12 N·m7.8–12 N·m6–9 ft·lb
Seat belt upper (shoulder) anchor bolt
Seat belts · NA 1990–1993 (B6)
28–58 ft·lb38–78 N·m38–78 N·m28–58 ft·lb
Front seat mounting bolts
Seat belts · NA 1990–1993 (B6)
28–38 ft·lb38–51 N·m38–51 N·m28–38 ft·lb
Seat recliner knuckle bolt
Seat belts · NA 1990–1993 (B6)
25–41 ft·lb34–56 N·m34–56 N·m25–41 ft·lb
Hardtop rear window glass nuts
Soft top & hardtop · NA 1990–1993 (B6)
21–30 in·lbin·lb2.4–3.3 N·m2.4–3.3 N·m21–30 in·lb
Soft top latch assembly bolt
Soft top & hardtop · NA 1990–1993 (B6)
3–5 ft·lb4.2–6.2 N·m4.2–6.2 N·m3–5 ft·lb
Hardtop top latch screw
Soft top & hardtop · NA 1990–1993 (B6)
3–5 ft·lb4.2–6.2 N·m4.2–6.2 N·m3–5 ft·lb
Hardtop side latch bolt
Soft top & hardtop · NA 1990–1993 (B6)
3–5 ft·lb4.2–6.2 N·m4.2–6.2 N·m3–5 ft·lb
Hardtop striker bolt
Soft top & hardtop · NA 1990–1993 (B6)
7–11 ft·lb9.8–15 N·m9.8–15 N·m7–11 ft·lb
Hardtop rear deck plate bolts
Soft top & hardtop · NA 1990–1993 (B6)
7–11 ft·lb9.8–15 N·m9.8–15 N·m7–11 ft·lb
Wiper arm nut
Wipers & washers · NA 1990–1993 (B6)
7–10 ft·lb9.8–14 N·m9.8–14 N·m7–10 ft·lb
Wiper motor bolts
Wipers & washers · NA 1990–1993 (B6)
5–7 ft·lb6.9–9.8 N·m6.9–9.8 N·m5–7 ft·lb
Washer reservoir (tank) mounting bolts
Wipers & washers · NA 1990–1993 (B6)
5–7 ft·lb6.9–9.8 N·m6.9–9.8 N·m5–7 ft·lb
Wiper link pivot bolt
Wipers & washers · NA 1990–1993 (B6)
5–7 ft·lb6.9–9.8 N·m6.9–9.8 N·m5–7 ft·lb