Lotus TURBO ESPRIT Service Manual page 247

Page 6
SECTION EMD
The s o l e n o i d i s e n e r g i s e d under any of t h e f o l l o w i n g c o n d i t i o n s :
a
1
Above e n g i n e speed of 1600 rpm on r i s e ( 1 4 0 0 rpm on f a l l )
a s s e n s e d by t h e e n g i n e s p e e d s e n s i n g r e l a y , t o p r e v e n t
c o m p l e t e t h r o t t l e c l o s u r e on overun t o r e d u c e hydrocarbon
e m i s s i o n s and ' i n h i b i t s t a l l i n g . The r e l a y
i s
mounted on
t h e w h e e l a r c h a l o n g s i d e t h e
R.H.
r e a r of t h e e n g i n e bay.
b
1
When t h e choke c o n t r o l
i s
o p e r a t e d , t o i n c r e a s e i d l e s p e e d .
The choke micro-switch
i s
i n t e g r a l w i t h t h e choke c a b l e
assembly a t t h e f a s c i a e n d , and i s a l s o u s e d t o o p e r a t e t h e
choke t e l l t a l e . T h i s s w i t c h o p e r a t e s a t h r o t t l e jack r e l a y
l o c a t e d a d j a c e n t t o t h e e n g i n e s p e e d s e n s i n g r e l a y .
c When a i r c o n d i t i o n i n g ( i f f i t t e d ) compressor i s o p e r a t i n g
i n o r d e r t o m a i n t a i n i d l e s p e e d .
To set up: With t h e e n g i n e a t normal r u n n i n g t e m p e r a t u r e , w i t h o u t
t h e a i r c o n d i t i o n i n g s w i t c h e d o n , c h e c k / a d j u s t i d l e s p e e d a t
t h e normal s t o p screw on t h e f r o n t of t h e r e a r c a r b u r e t t o r .
C o r r e c t s e t t i n g 9 5 0
c
5 0 rpm.
E n e r g i s e t h e s o l e n o i d w i t h 1 2 v o l t s and a d j u s t t h e l e v e r screw
( a g a i n s t which t h e s o l e n o i d b u t t o n o p e r a t e s ) t o o b t a i n an e n g i n e
speed of 1100 rpm and t h e n d e - e n e r g i s e .
T e s t e a c h of t h e t h r e e a c t i v a t i n g s y s t e m s and o b s e r v e t h e a c t i o n
of t h e s o l e n o i d .
EMD.7.
-
A I R
INLET TEMPERATURE CONTROL SYSTEM
The ~ i r I n l e t Temperature C o n t r o l
( A T C )
system c o m p r i s e s an
ATC
f l a p v a l v e u n i t on t h e a i r b o x i n l e t and a n
ATC
s e n s o r f i t t e d
i n t o t h e bottom of t h e a i r b o x .
To Carburet
Vacuum
Proportioning
.tor Ports Valve
Vacuum
Vacuum
L. I
Air
~ i h e r
Element
Shroud