7-23 SERVICING INFORMATION
SERVICE DATA
VALVE + GUIDE
Unit: mm (in)
CA CYLINDER HEAD
Unit: mm (in)
ITEM
STANDARD
LIMIT
Valve diam.
IN.
22.5
(0.89)
—
EX.
19.0
(0.75)
—
Valve clearance (when cold)
IN.
0.04 – 0.07
(0.0016 – 0.0028)
—
EX.
0.05 – 0.10
(0.0020 – 0.0039)
—
Valve guide to valve stem
clearance
IN.
0.025 – 0.052
(0.0010 – 0.0020)
—
EX.
0.040 – 0.067
(0.0016 – 0.0026)
—
Valve guide I.D.
IN. & EX.
5.000 – 5.012
(0.1969 – 0.1973)
—
Valve stem O.D.
IN.
4.960 – 4.975
(0.1953 – 0.1959)
—
EX.
4.945 – 4.960
(0.1947 – 0.1953)
—
Valve stem deflection
IN. & EX.
—
0.35
(0.014)
Valve stem runout
IN. & EX.
—
0.05
(0.002)
Valve head thickness
IN. & EX.
—
0.5
(0.02)
Valve stem end length
IN. & EX.
—
2.2
(0.09)
Valve seat width
IN. & EX.
0.9 – 1.1
(0.035 – 0.043)
—
Valve head radial runout
IN. & EX.
—
0.03
(0.001)
Valve spring free length
IN. & EX.
—
34.5
(1.36)
Valve spring tension
IN. & EX.
157 – 181 N (16.0 – 18.5 kgf, 35.3 –
40.8 lbs) at length 25.5 mm (1.00 in)
—
ITEM
STANDARD
LIMIT
Cam height
IN.
27.39 – 27.43
(1.078 – 1.08)
27.09
(1.067)
EX.
27.25 – 27.29
(1.073 – 1.074)
26.95
(1.061)
Rocker arm I.D.
IN. & EX.
10.003 – 10.018
(0.3938 – 0.3944)
—
Rocker arm shaft O.D.
IN. & EX.
9.981 – 9.990
(0.3930 – 0.3933)
—
Cylinder head distortion
—
0.05
(0.002)