System Specifications
SPECIFICATIONSCylinder Head
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.
Manifolds, Intake and Exhaust
Manifold nuts and bolts (both intake and exhaust) 11 - 14 ft. lbs. (15 - 20 Nm, 1.5 - 2.0 kg-m)
Camshaft Carrier
Tighten the cam carrier bolts to the specified torque in two or three steps.
Tightening torque: 8.31 - 10.5 ft. lbs. (11.2 - 14.2 Nm, 1.15 - 1.45 kg-m)
Valve clearance mm (inch)
IN 0: Maintenance-free
EX 0: Maintenance-free
Valve
Margin Thickness
Intake 0.0394 in. (1.0 mm)
Exhaust 0.0394 in (1.0 mm)
Length
Intake 3.7815 in (96.05 mm)
Exhaust 3.7402 in (95.00 mm)
Valve Stem Diameter
Intake 0.2152 - 0.2157 in (5.465 - 5.480 mm)
Exhaust 0.2138 - 0.2146 in (5.430 - 5.450 mm)
Diameter Intake and Exhaust Valve Guide; 0.2165 - 0.2171 in (5.500 - 5.515 mm)
Valve Stem-to-Valve Guide Clearance
Intake Valve 0.0008 - 0.0020 in (0.020 - 0.050 mm)
Exhaust Valve 0.0020 - 0.0030 in (0.050 - 0.085 mm)
Max 0.008 in (0.20 mm)
Seat width 0.0382 - 0.0618 in (0.97 - 1.57 mm)
Valve Spring
Free length
Standard 1.5354 in (39.0 mm)
Limit 1.5276 in (38.8 mm)
Out of Square 0.0402 in (1.02 mm)