Honda Accord 2008 Manual page 296

V6
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Valve Seat Reconditioning (cont'd)
6. A f t e r r e s u r f a c i n g t h e s e a t i n s p e c t it f o r e v e n v a l v e
s e a t i n g . A p p l y P r u s s i a n B l u e c o m p o u n d ( A ) t o t h e
v a l v e f a c e . I n s e r t t h e v a l v e i n i t s o r i g i n a l l o c a t i o n i n
t h e h e a d , t h e n l i f t it a n d s n a p it c l o s e d a g a i n s t t h e
s e a t s e v e r a l t i m e s .
B
7. T h e a c t u a l v a l v e s e a t i n g s u r f a c e ( B ) , a s s h o w n b y
t h e b l u e c o m p o u n d , s h o u l d b e c e n t e r e d o n t h e s e a t .
• If it is t o o h i g h ( c l o s e r t o t h e v a l v e s t e m ) , y o u
m u s t m a k e a s e c o n d c u t w i t h t h e 6 7 . 5 ° c u t t e r
( i n t a k e s e a t ) o r t h e 6 0 ° c u t t e r ( e x h a u s t s e a t ) t o
m o v e it d o w n , t h e n o n e m o r e c u t w i t h t h e 45 °
c u t t e r t o r e s t o r e s e a t w i d t h .
• If it is t o o l o w ( c l o s e r t o t h e v a l v e e d g e ) , y o u m u s t
m a k e a s e c o n d c u t w i t h t h e 3 0 ° c u t t e r t o m o v e it
u p , t h e n o n e m o r e c u t w i t h t h e 4 5 ° c u t t e r t o
r e s t o r e s e a t w i d t h .
8. I n s e r t t h e i n t a k e a n d e x h a u s t v a l v e s i n t h e h e a d ,
a n d m e a s u r e t h e v a l v e s t e m i n s t a l l e d h e i g h t ( A ) .
I n t a k e V a l v e S t e m I n s t a l l e d H e i g h t
S t a n d a r d ( N e w ) : 4 6 . 7 5 — 4 7 . 5 5 m m
( 1 . 8 4 1 - 1 . 8 7 2 in.)
S e r v i c e L i m i t :
4 7 . 8 0 m m ( 1 . 8 8 2 in.)
E x h a u s t V a l v e S t e m I n s t a l l e d H e i g h t
S t a n d a r d ( N e w ) : 4 6 . 6 8 — 4 7 . 4 8 m m
( 1 . 8 3 8 - 1 . 8 6 9 in.)
S e r v i c e L i m i t :
4 7 . 7 3 m m (1.879 in.)
9 . If t h e v a l v e s t e m i n s t a l l e d h e i g h t is o v e r t h e s e r v i c e
l i m i t , r e p l a c e t h e v a l v e a n d r e c h e c k . If it i s s t i l l o v e r
t h e s e r v i c e l i m i t , r e p l a c e t h e c y l i n d e r h e a d ; t h e
v a l v e s e a t i n t h e h e a d is t o o d e e p .
N O T E : T h e f i n a l c u t s h o u l d a l w a y s b e m a d e w i t h
t h e 4 5 ° c u t t e r .
6-118

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