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ENGINE: HEAD· VALVES· GUIDES· SPRINGS AND ROCKERS
CYLINDER HEAD
VALVES - VALVE GUIDES - SPRINGS AND ROCKERS
53
MAIN SPECIFICATIONS
..
page
53
MISCELLANEOUS . . . . . .
»
54
Removal and Installation.
»
54
Disassembly and Assembly
»
55
CYLINDER HEAD
»
55
VALVES . . . . .
»
58
VALVE GUIDES.
»
59
VALVE SPRINGS.
»
60
ROCKERS . . . . .
»
61
MAIN
SPECIFICATIONS
DESCRIPTION
in
rom
Valve guide seat bore
in head
.
.
.
.5098 to .5109
12.950 to 12.977
Valve guide
0.0.
.
.5122 to .5130
13.010 to 13.030
Bore of valve guides fitted
in
head
.2765 to .2772
7.022 to 7.040
Valve guide-to-seat press fit
·
·
.0013 to .0031
0.033 to 0.080
Valve stem diameter
.
·
·
.2750 to .2756
6.985 to 7.000
Valve stem-ta-guide fit:
- clearance of new
parts
· .
· .
.
.0009 to .0022
0.022 to 0.085
-
wear
limit
.006
0.15
Valve seat angle .
.
·
·
45°±5'
Valve face angle
·
·
45°30' ±5'
Valve head diameter
!
intake
1.063
27
exhaust
.984
25
Maximum runout of valve for a full turn of stem, with dial
.0008
0.02
plunger set at center of contact face
Valve seat height (contact face): intake and exhaust
.0512 to .0591
1.3 to 1.5
Valve seat J.D.
I
intake
,945
24
I
exhaust.
.
·
.856
22
(continued)
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