Engine Valves & Valve Springs Specifications
WARNING: This page is about a different car, the 2002 Mazda B3000 and 2001 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
VALVES & VALVE SPRINGS
| Application | Specification | ||
|---|---|---|---|
| Intake Valves | |||
| Face Angle | 44° | ||
| Head Diameter | 1.57" (40 mm) | ||
| Minimum Margin | .0313" (.794 mm) | ||
| Stem Diameter | .3126-.3134" (7.940-7.960 mm) | ||
| Exhaust Valves | |||
| Face Angle | 44° | ||
| Head Diameter | 1.30" (33.0 mm) | ||
| Minimum Margin | .0313" (.794 mm) | ||
| Stem Diameter | .3121-.3129" (7.928-7.948 mm) | ||
| Valve Springs | |||
| Free Length | 1.84" (46.7 mm) | ||
| Installed Height | 1.65-1.74" (42.0-44.2 mm) | ||
| Out-Of-Square | .078" (1.98 mm) | ||
| Lbs. @ In. (kg @ mm) | |||
| Pressure | |||
| Valve Closed | 65 @ 1.58 (30 @ 40.1) | ||
| Valve Open | 180 @ 1.16 (82 @ 29.5) | ||