Valve Spring Squareness

VALVE SPRING SQUARENESS





^ Set a try square along the side of valve spring and rotate spring. Measure the maximum clearance between the top of spring and try square.
Limit : 2.1 mm (0.083 inch)
^ If it exceeds the limit, replace valve spring.

VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD





^ Check the valve spring pressure at specified spring height.
Standard:
Intake and exhaust
Free height: 47.07 mm (1.8531 inch)
Installation height: 37.0 mm (1.457 inch)
Installation load: 166 - 188 N (16.9 - 19.2 kg, 37 - 42 lb)
Height during valve open: 27.2 mm (1.0709 inch)
Load with valve open: 373 - 421 N (38.0 - 42.9 ka. 84 - 95 lb)
^ If the installation load or load with valve open is out of the standard, replace valve spring.