Cylinder Head Assembly: Specifications

Cylinder Head
Height 133.8 - 134.0 mm (5.268 - 5.275 in)
Distortion 0.10 mm (0.004 inch) max
Grinding 0.10 mm (0.004 inch) max
Valve clearance
IN 0.18 - 0.24 mm (0.0071 - 0.0094 in) (0.21 ± 0.03 mm (0.0083 ± 0.0011 in)
EX 0.28 - 0.34 mm (0.0111 - 0.0133 in) (0.31 ± 0.03 mm (0.0122 ± 0.0012 in)

Head Bolt Assembly Sequence:

Head Bolt Disassembly Sequence:

IMPORTANT: Perform head torquing in 2 - 3 steps.

Bolt Torque 76 - 81 Nm (56 -60 ft lbs)


Valve and valve guide
Margin thickness
IN 0.9 (0.035 in) min
EX 1.0 mm (0.039 in) min
Valve length
IN
Standard 101.71 - 102.31 mm (4.004 - 4.027 in)
Minimum 101.61 mm (4.000 in)
EX
Standard 101.71 - 102.31 mm (4.004 - 4.027 in)
Minimum 101.61 mm (4.000 in)
Valve stem diameter
IN
Standard 5.970 - 5.985 mm (0.235 - 0.235 in)
Minimum 5.920 mm (0.2331 inch)
EX
Standard 5.965 - 5.980 mm (0.234 - 0.235 in)
Minimum 5.915 mm (0.232 in)
Valve guide inner diameter 6.02 - 6.04 mm (0.237 - 0.237 in)
Valve guide protrusion height
IN 18.3 - 18.9 mm (0.721 - 0.744 in)
EX 18.3 - 18.9 mm (0.721 - 0.744 in)

Valve seat
Seat contact width
IN 0.8 - 1.4 mm (0.032 - 0.055 in)
EX 0.8 - 1.4 mm (0.032 - 0.055 in)
Seat angle
IN 45°
EX 45°
Seat sinking (Valve protrusion height)
IN
Standard 45.0 mm (1.772 in)
Maximum 45.6 mm (1.795 in)
EX
Standard 45.0 mm (1.772 in)
Maximum 45.6 mm (1.795 in)

Valve spring
Pressing force at valve spring height H
IN
H:39.5 N 172.60 - 195.15 N (38.72 - 43.78 lbs.)
EX
H: 39.5 N 172.60 - 195.15 N (38.72 - 43.78 lbs.)
Out-of-square
IN 1.58 mm (0.062 in) max
EX 1.63 mm (0.064 in) max

Timing Components/Crankshaft Pulley:

Crankshaft Pulley

Valve Cover bolt sequence






Tighten the valve cover bolts in two or three step in the order shown.