System Specifications

General Specifications
Valve margin thickness
Intake 0.0394 inch (1.0 mm)
Exhaust 0.0394 inch (1.0 mm)
Valve length
Intake 3.7815 inch (96.05 mm)
Exhaust 3.7402 inch (95.00 mm)
Valve Stem diameter
Intake 0.2152 - 0.2157 inch (5.465 - 5.480 mm)
Exhaust 0.2138 - 0.2146 inch (5.430 - 5.450 mm)
Diameter intake and exhaust valve guide 0.2165 - 0.2171 inch (5.500 - 5.515 mm)
Valve stem-to-valve guide clearance
Intake valve 0.008 - 0.0020 inch (0.020 - 0.060 mm)
Exhaust valve 0.0020 - 0.0033 inch (0.050 - 0.085 mm)
Max 0.006 inch (0.20 mm)
Valve guide protrusion height
Intake 0.5039 - 0.5276 inch (12.8 - 13.4 mm)
Exhaust 0.5039 - 0.5276 inch (12.8 - 13.4 mm)
Seat contact width 0.0386 - 0.0618 inch (0.97 - 1.54 mm)
Valve free length
Standard 1.5354 inch (39.0 mm)
Limit 1.5276 inch (38.8 mm)
Out-of-square 0.0402 inch (1.02 mm)

Tightening torque




Cylinder Head Tightening Torque and Sequence.

Tighten cylinder head bolts in order shown.
Tightening torque: 36.1 ft. lbs. (49 Nm, 5 kg-m)

Loosen bolts in reverse of order shown.

Retighten cylinder head bolts in order shown.
Tightening torque: 18 ft. lbs. (25 Nm, 2.5 kg-m)

Mark cylinder head bolts for rotational reference.
Rotate cylinder head bolts 90° (1/4 Turn) in order shown.

CAUTION:
^ Do not reuse the old cylinder head bolts.


Manifold nuts and bolts (both intake and exhaust); 11 - 14 ft. lbs. (15 - 20 Nm, 1.5 - 2.0 kgf-cm)
Camshaft pulley 55.0 - 77.4 ft. lbs., (74.5 - 104.9 Nm, 7.6 - 10.7 kgf-cm