All NA & NB Miatas

Engine

Cylinder head & camshafts

Valve cover (cylinder head cover) bolts
NA 1990–1993 (B6)
43–78 in·lbin·lb5–9 N·m5–9 N·m43–78 in·lb
Cylinder head bolts
NA 1990–1993 (B6)
56–60 ft·lb76–81 N·m76–81 N·m56–60 ft·lb
Camshaft cap bolts
NA 1990–1993 (B6)
100–126 in·lbin·lb11–14 N·m11–14 N·m100–126 in·lb

Engine mounts

Engine mount nuts (to crossmember)
NA 1990–1993 (B6)
42–58 ft·lb57–78 N·m57–78 N·m42–58 ft·lb

Timing belt & pulleys

Crankshaft pulley bolts (pulley to timing belt pulley)
NA 1990–1993 (B6)
109–152 in·lbin·lb12–17 N·m12–17 N·m109–152 in·lb
Timing belt tensioner lock bolt
NA 1990–1993 (B6)
27–38 ft·lb37–52 N·m37–52 N·m27–38 ft·lb
Timing belt idler pulley bolt
NA 1990–1993 (B6)
27–38 ft·lb37–52 N·m37–52 N·m27–38 ft·lb
Camshaft pulley bolt
NA 1990–1993 (B6)
36–45 ft·lb49–61 N·m49–61 N·m36–45 ft·lb
Timing belt cover bolts (upper, middle, lower)
NA 1990–1993 (B6)
69–95 in·lbin·lb8–11 N·m8–11 N·m69–95 in·lb