General Specifications

GENERAL SPECIFICATIONS

Cylinder Head
Cylinder head gasket surface flatness 0.08 mm (0.003 inch) Total
Combustion chamber volume (cc) 65.197 ± 2.068 - 2.018
Valve arrangement (front to rear) LH=IEIEIE RH=EIEIEI
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 (0.274 inch)
Valve stem-to-guide clearance exhaust 0.035 - 0.068 mm (0.001 - 0.003 inch)
Valve stem-to-guide clearance intake 0.020 - 0.053 mm (0.001 - 0.002 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 (0.001)
Valve face angle (degrees) 45°
Valve seat width (exhaust and intake) 1.556 - 2.404 mm (0.06 - 0.094 inch) 1.273 - 2.121 mm (0.05 - 0.083 inch)
Valve seat runout (TIR maximum) 0.059 mm (0.002 inch)
Valve seat angle (degrees) 45°
Valve spring free length intake 43.1 mm (1.7 inch)
Valve spring free length exhaust 43.1 mm (1.7 inch)
Valve spring squareness ±1.5 degree
Valve spring compression pressure intake (at specified height) 275 - 305 Nm at 35.9- 36.7 mm (202.84 - 224.968 ft. lbs. at 1.413 1.445 inch)
Valve spring compression pressure exhaust (at specified height) 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 intake 39.86 - 40.86 mm (1.569 - 1.601 inch)
Valve spring installed height exhaust 39.86 - 40.68 mm (1.569 - 1.601 inch)
Valve spring installed pressure 320 newtons
Roller follower ratio 1.98:1

Head gasket surface flatness 0.1 mm (0.004 inch) overall
Head gasket surface finish (RMS) 60 - 150