General Specifications
DIMENSIONSCombustion Chamber Volume: 47.1-50.1 cubic cm (2.874 cubic inches)
Valve Guide Bore Diameter: 8.720-8.745 mm (0.3433-0.3443 inches)
Valve Seats
Width: 1.5-2.0 mm (0.06-0.08 in)
Angle: 45°
Runout (T.I.R.): 0.076 mm (0.003 in)
Bore Diameter (Insert Counterbore Diameter): 47.097 mm (1.8542 inches) Max.
Intake: 47.072 mm (1.8532 inches) Min.
Exhaust: 39.730 mm (1.5645 inches) Max.
Gasket Surface Flatness: 0.08 mm (0.003 inch) over 152.0 mm (6.0 inches)
TORQUE SPECIFICATIONS
1. Install new cylinder head retaining bolts:
- Tighten retaining bolts in sequence shown to 80 Nm (59 ft. lbs.).
- Then back off bolts 360 degrees.
CAUTION: Always use new cylinder head bolts when installing cylinder head or damage to engine may occur.
2. Tighten the cylinder head retaining bolts in two final tightening steps in the following sequence:
- 50 Nm (37 ft. lbs.)
- 92 Nm (68 ft. lbs.)
NOTE: When cylinder head retaining bolts have been tightened, it is not necessary to retighten the bolts after extended engine operation. However, the bolts can be checked for tightness if desired.