SERVICE DATA

VALVE+GUIDE

Unit:mm(in)

ITEM
STANDARD
LIMIT
Valve diam.
IN.

30.6
(1.20)

-
EX.

27.0
(1.06)

-
Valve lift
IN.
8.0
(0.31)
-
EX.
8.0
(0.31)
-
Valve clearance(when cold)
IN.
0.05-0.10
(0.002-0.004)
-
EX.
0.08-0.13
(0.003-0.005)
-
Valve guide to valve stem clearance
IN.
0.010-0.037
(0.0004-0.0015)
0.35
(0.014)
EX.
0.030-0.057
(0.0012-0.0022)
0.35
(0.014)
Valve guide I.D.
IN. & EX.
5.000-5.012
(0.1969-0.1973)
-
Valve stem O.D.
IN.
4.975-4.990
(0.1959-0.1965)
-
EX.
4.955-4.970
(0.1951-0.1957)
-
Valve stem runout
IN. & EX.
-
0.05
(0.002)
Valve head thickness
IN. & EX.
-
0.5
(0.02)
Valve stem end length
IN. & EX.
-
1.8
(0.07)
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.)
INNER
-
35.0
(1.38)
OUTER
-

37.8
(1.49)

Valve spring tension
(IN. & EX.)
INNER
5.3-6.5 kg
(11.7-14.3 lbs)
at length 28.0mm(1.10 in)
-
OUTER
13.1-15.1 kg
(28.9-33.3 lbs)
at length 31.5mm (1.24 in)
-

@