Lotus TURBO ESPRIT Service Manual page 20

SECTION TD A
Page
74
IGNITION SYSTEM
TY
pe
-
Spec.1,2,3,4,5,6 Csil and Distributor
-
Spec
7, 8,
9 (Eprit up Coil and distributor with infra-red solid
to 1983. Not Excel)
state
'
Lumeni tion' system.
-
Spec 9 (Esprit 1983 on
Coil and distributor with Lucas
and Excel only)
Constant Energy System
Number. 1 cyl inder
. Toward front
Ignition advance control
Sparking plugs:
Fully automatic
With
Lucas
ignition leads
-
spec 1,3,5 NGK
BP6ES
-
spec
2,4,6,7 NGK BP5ES
With NGK ignition
leads
-
spec 1,3,5,9 NGK BPR6ES
-spec 2,4,6,7,8 NGK BPR5ES
-
spec 10 NGK BPR7ES
Spark plug gap
-
with contact breaker 0.6
mm.
(0.023 in.)
-
with high energy ignition 0.9
rnm.
(0.035 in.)
DISTFSBVPOR
&
IGNITIaJ TIMING
( A l l
figures
+
2 " )
Spec 2 25D 8 O 8' 0"
(
41584
)
Retard
Spec 3
25D blanked
16"
16'
(41584
)
off
Spec 4 , 6 25D 8"
8'
0
"
(
41634A)
Retard
45D
(
41626
)
Spec 5
23D4 ar 43D
-
9"
-
(
41623 1
Spec 7,8 45D (41626) 8" 10" .2"
with Retard
Livnenition
I I
I '
I
spec 9 43D with
-
:go .,
-
Lumenition
Ehergy Iqn.
Spec 1 0
45D (41946 1
w
10"
l o 0
Ccostant Advance (hot
C e n t r i f u g a l Advance
Characteristics
(vacuum disconnected
B e l w
1,000 n i l 28" BTDC @
2,000 8" 3.500
-
4.000 run
I
3,000 16" ( & c u m disconn;?cted)
as Spec
1 24" BTDC
@
3,500
-
4,000
rpn
I
(vacuum d i s c o n n e c t e d )
as Spec 1 ( 3 2
-
34" BTDC @
2,000
4,000 (vacuum d i s c o n n e c t e d )
5,000
Spec 4,6
(vacuum
disconnected
)
3,500
-
4,000
950
2
50 r p n
APR ,1987