Cylinder Head - Lotus Elan 1970 Workshop Manual

C v l i n d e r H e o d
Moteriol
Gosket
C y l i n d e r h e o d i d e n t i f i c q t i o n
- S r n o l l v o ! v e
- B i g v o l v e
Cylinder heod dePth - Smoll volve
- B i g v o l v e
M o x . p e r m i s s o b l e m e t o t r e m o v o l
- S m o l l v o l v e '
- B i g v o l v e
V o l v e t i m i n g - I n l e t o P e n s
I n l e t c l o s e s
Exhoust oPens
Exhoust closes
Angle of volve seols ond foces
Volves:
H e o d d i o m e t e r - I n l e t ( e x c e p t S p r i n t )
- I n l e t ( S p r i n t )
- Exhoust
S t e m d i o m e t e r - I n l e t
- Exhoust
S t e m c l e o r o n c e i n g u i d e - I n l e i
-? it
- Exhoust
C l e o r o n c e ( c o l d ) - I n l e t
- Exhoust (to Engine 9951 )
- Exhoust (from Engine 9952)
V o l v e s p r i n q s :
ffi
TyPe
Free Length - lnner
Outer
i
R o t e - I n n e r @ . 9 2 i n - ( 2 3 . 4 m m . )
- I n n e r @ ' S a i n . ( 1 4 . 7 m r m . )
- O u t e r @ t . t 7 i n . ( 2 9 . 7 m m ' )
- O u t e r @ , , 8 3 i n . ( 2 1 . I m m ' )
V o l v e g u i d e s :
' Internol cjio. (to reom cfter fitting)
A l u m i n i u m
Copper/osbestos
' S ' ( & F e d . B i g v o l v e )
' N' or ' H' ( & S /E St ro m b er g )
4 . 6 38 / 4. 64 3 in . (1 1 .7 8 /1 1 - 79 cm .)
4 . s9 8 /4 .6 0 3 in . ( l I .6 8 ll'l .6 9 cm . )
. M 5 i n . ( 1 . 1 4 m m . )
. 0 1 0 i n . ( . 2 5 4 m m . ) .
2 2 0 g . T . D . C . )
A )
62- A.B .D .c. j sro,
6 2 0 B . B . D . c . )
2 2 0 A . T . D . c , )
450
1 . 52 6 /1 .5 3 0 in . (3 8 .7 60 / 38 .t h z m m .)
1 .5 6 0/ 1. 56 6 in . ( 39 .6 2 4 /9 .7 7 6 m m .)
| .321/1,325 in . (33 .553/33 .555 mm.)
. 3 10 /. 3 11 in. ( 7 .8 7 4f r '8 9 9 m m . )
. 3 1 0 / . 3 1 1 i n . ( 7 . 8 7 4 n - 8 9 9 m m . )
. 0 0 f 3 /.0 0 2 3 in . (.cA 7 / .0 5 8 m m . )
.0025/ .0030 in. ( .063/.076 mm ')
.o O5 / .OO7 in. (. 12 7 / . 17 7 m n .)
" 0 06 /. 0 08 in . ( .1 52 / . 2 03 m m .)
. OW/ . 0 1'l in , ( .2 2 8 / .2 7 9 m m .)
Du ol
I . 1 3 0 i n . ( 2 8 . 7 0 m m . )
1 . 4 5 0 i n . ( 3 6 . 8 3 m m . )
1 2 . 4 l b s . ( 5 . 6 k g . )
3 3 . 5 l b s . ( 1 5 . 2 k g . )
4 5 l b s . ( 2 0 . a k s . )
'109 lbs. (ae.a ks -)
' !
. 3 1 ' 1 3 / . 3 1 2 3
i n . ( 7 . 9 3 2 m m . )
2 6 0 B . T . D . C . )
6 6 0 A . B . D . c
l
6 6 0 B . B . D . C . )
2 6 0 A . T . D . c . )
Ei
\-
r-' :::.
I
1074
E l o n
l t .