Valve Guide Projection Above Cylinder Head - Honda NSA700A DN-1 2009 Service Manual

E xcept U .S .A . procedure:
A d ju s t th e v a lv e g u id e d riv e r to th e v a lv e g u id e
h eig h t.
TOOL:
Valve guide driver
VALVE GUIDE PROJECTION ABOVE CYLINDER
HEAD:
IN: 1 2 .5 -1 2 .7 mm (0 .4 9 -0 .5 0 in)
EX: 1 6 .7 -1 6 .9 mm (0 .6 6 -0 .6 7 in)
D riv e n e w g u id e s in fro m th e ca m s h a ft side o f th e
c y lin d e r h ead to th e v a lv e g uid e h e ig h t w h ile th e
c y lin d e r head is still h eated .
U .S .A . procedure:
TOOL:
Valve guide driver, 5.5 mm
D riv e n e w g u id e s in fro m th e c a m sh a ft side o f th e
c y lin d e r head to th e v a lv e g uid e h e ig h t w h ile the
c y lin d e r h e a d is still h eated .
D riv e in th e g u id e s until th e m arks a re p ara llel w ith
th e cy lin d e r head.
C heck th a t th e v a lv e g u id e s a re at th e p ro p e r d ep th ,
a d ju st th e h e ig h t if necessary.
Let th e c y lin d e r h ead cool to ro o m te m p e ra tu re ,
th e n ream th e n e w v a lv e guides.
TOOL:
Valve guide reamer, 5.510 mm
NOTE:
• T ake care n o t to tilt or lean th e re a m e r in the
g u id e w h ile re a m in g .
m a y b e in stalled s lan te d , causing
fro m th e stem seal an d im p ro p e r v a lv e sea t con­
tact. T his m a y p re v e n t v a lv e seat refacin g.
• In sert th e re a m e r fro m th e co m b u stio n c h a m b e r
side o f th e h ead a n d alw ays ro tate th e re a m e r
clockw ise.
C lean th e c y lin d e r head th o ro u g h ly to re m o v e any
m etal particles a fte r re a m in g .
R eface th e v a lv e seat (p a g e 9-21).
07743-0020000
(Not available in
U.S.A.)
07742-0010100
07984-2000001 or
07984-2000001D
(U.S.A. only)
O th e rw is e, th e valves
oil leakag e
CYLINDER HEAD/VALVE
V A LV E G U ID E DRIVER
^
G U D E R EA M E R
V A L V t
9-19