Engine Valves & Valve Springs Specifications
WARNING: This page is about a different car, the 2000 Lexus SC 300, 2000 Lexus GS 300, 1999 Lexus SC 300, and 1999 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
VALVES & VALVE SPRINGS
| Application | Specification | ||
|---|---|---|---|
| Intake Valves | |||
| Face Angle | 44.5° | ||
| Minimum Margin | .020" (.50 mm) | ||
| Minimum Refinish Length | 3.8657" (98.190 mm) | ||
| Stem Diameter | .2350-.2356" (5.970-5.985 mm) | ||
| Stem-To-Guide Oil Clearance | |||
| Standard | .0010-.0024" (.025-.061 mm) | ||
| Wear Limit | .0031" (.080 mm) | ||
| Exhaust Valves | |||
| Face Angle | 44.5° | ||
| Minimum Margin | .020" (.50 mm) | ||
| Minimum Refinish Length | 3.8874" (98.740 mm) | ||
| Stem Diameter | .2348-.2354" (5.964-5.980 mm) | ||
| Stem-To-Guide Oil Clearance | |||
| Standard | .0012-.0026" (.030-.066 mm) | ||
| Wear Limit | .0039" (.100 mm) | ||
| Valve Springs | |||
| Free Length | |||
| Pink Paint Mark | 1.7209" (43.71 mm) | ||
| Yellow Paint Mark | 1.7362" (44.10 mm) | ||
| Out-Of-Square | .079" (2.01 mm) | ||
| Lbs. @ In. (kg @ mm) | |||
| Pressure | |||
| Intake & Exhaust | 42-46 @ 1.358 (19-21 @ 34.52) | ||