Valve Clearance

GENERAL SPECIFICATIONS

Valve arrangement (front to rear) LH I E I E I E
Valve arrangement (front to rear) E I E I E I
RH Valve guide bore diameter 7.00 7.018 mm (0.276 inch)
Valve stem diameter intake 6.965 - 6.98 mm (0.274 - 0.275 inch)
Valve stem diameter exhaust 6.95 - 6.965 mm (0.27 - 0.274 inch)
Valve stem to guide clearance intake 0.020 - 0.053 mm (0.001 - 0.002 inch)
Valve stem to guide clearance exhaust 0.035 - 0.068 mm (0.001 - 0.003 inch)
Valve head diameter intake 45.9 - 46.1 mm (1.807 - 1.815 inch)
Valve head diameter exhaust 38.9 - 39.1 mm (1.531 - 1.539 inch)
Valve face runout 0.03 mm (0.001 inch)
Valve face angle 45 degrees
Valve seat width intake 1.273 - 2.121 mm (0.05 - 0.083 inch)
Valve seat width exhaust 1.556 - 2.404 mm (0.061 - 0.095 inch)
Valve seat runout 0.059 mm (0.002 inch)
Valve seat angle 45 degrees
Valve spring free length 43.1 mm (1.7 inch)
Valve spring squareness ± 1.5 degree
Valve spring compression pressure at specified height (lbs.) 275 - 305 Nm at 35.9 36.7 mm (202.84 - 224.968 ft. lbs.
at 1.413 1.445 inch)
Valve spring installed height 39.86 - 40.86 mm (1.569 - 1.609 inch)
Valve spring installed pressure 320 newtons (72 lbs.)