Lotus Elan 1970 Instruction manual

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llfiil
Worlshop
Manual
LotLrsi Gans Lirnited
Nonwich, Nonfolk , NFl14 AEZ, England
Telegnarns: Lotus ,Nonwich . Telext .974CJ1
I
Port
No
. 36I 327 Morch
1970'C

lffi||$
llf,tf
Worlshop
Manual
LotLrsi Cans Lirnited
Nonwich, Nonfolk , NFl14 AEZ, England
Telegnarnss: Lotus ,Nonwich . Telext 974CJ1
I
Porf
No. 36
T 327 Morch
1970'O

NOTE: Lotus
policy is one of continuous
product
improvement
ond the right is ,"rur,r"t to olter specificotions
ot ony
timewithoutpriornotice
Whilsr reosonobleefforts
hove
been
modeto ensure
fhof
ot the time of publishing
thismonuol
is correct, the
descriptionsond illustrotions
oppeoringore
notbinding.
I
E.
&
O.E.

\
,e

I
\,,
CONTENTS
Technicol
Doto
Chossis
Body
FrontSuspension
Reor
Suspension
Engine
Georbox
Hubs,Wheels
ondTyres
Steering
Brokes
Cooling
S;atem
Fuel
Sptem
Elechicol
Equipment
Lubricofion
ond
Mointenonce
HeofingondVentilqfion
Clutch
Finol
Drive
qnd
Propeller
Shoft
ExhoustSystem
Overhoul
qnd
Rebuild
o
Poge
9
A
B
c
D
E
F
G
H
J
.+a)"
K.
L
M
o
P
a
R
s
X
3
*rtz? 5.

INTRODUCTION
This Workshop
Monuol, which is in loose-leof
formfor eosyomendment, hos
been compiled to ossist
Lotus
Deolersthroughouf
theworld in the efficient repoirond
mointenonceof theLotusElonmodels.
The vorious
unitsond systems
of thevehicleoredeolt
with in sections which
ore listedonpoge 5, eoch
beingdisfinguished
byo reference
letter, thisletterbeing
the someos is usedin other
service
publicotions
(i.e., A = chossisin PortsListsond
in the LobourSchedule). Eochsection
fhus
referred
to openswith q contents
poge
so
thot
onyporticulor operotion
con
be eosily
locoted.
Servicelnformotion
Design
chonges,producf improvements
or chongesin procedure subsequent
to
the publishing
of this mqnuol ore given in Service/Por*Bulletinswhich ore
issued
regulorlyfo oll outhorised LotusDeolers. Should
existing
instructionsbeoffectedor
odditionolinformotion
be needed,new pogesto this monuolwill be issuedto Lotus
Deolers
when
convenient.
To ensurethe monuol is kept up-to-dote, write theBulletinnumber,the
section ond poge number it offects ond the subiecf motter in thespoceprovidedon
poge8
TechnicolDoto
Comprehensive
informotion regording dimensions,toleronces, weights ond
torqueloodingfigures
of oll nuts
ondboltsore givenon poge9 onwords.
RecommendedLubricotion
ond
Mointenonce
Attention is drownto Section'O'of thisrnonuolfor the Foctoryopproved
recommendedlubriconts
ondihtervols of PeriodicolMoinfenonce.
FrostPrecoutions
Attention is drown to the recommendotions
given in Secfion'K' (Cooling
System)of thismonuol
on fhe importonce
of toking properprecoutions
ogoinstdomoge
by frost.
PointondBodv
Protection
Whenwork
iscorried
outononyport
of thecorwhere
domogecould
be coused
fo the point
ondbody, i.e. working
onfheengine,or removing
thewindscreen,it is
recommendedthot body protectioncovers
be used.
L-,
6.
to

-t SECTION CHECK LIST
Thenumber
of pogesin eochsection
is correctot:- Februory, 1970.
L
1
Section Description
TECHI.IICAL
DATA
cHASStS
BODY
FRONTSUSPENSION
REARSUSPENSION
ENGIN
E
GEARBOX
WHEELS,HUBS
AND
TYRES
STEERING
BRAKING
SYSTEM
COOLING
SYSTEM
FUEL
SYSTEM
ELECTRICAL
EQUIPMENT
LUBRICATION
AND
MAINTENANCE
H
EATINGAND
VENTILATION
CLUTCH
FINALDRIVE
EXHAU
STSYSTEM
OVERHAUL
AND
REBUILD
Numberof poges
27
8
5l
14
7
41
l8
ll
t5
24
.10
54
n2
l6
6
il
2l
6
l0
t-, *vn
7.

SERVICE
BULLETIN
RECORD
To ensure thof the informotion
contoined
in fhe monuol
is up-to-dote, LotusDeolers -\
cre osked,whentheyreceivethem, to recordin the columns
below, the bulletin numbers \-
with their subiects
ondthesection
ondpoge number
offected
lf referenceis thenmodeto thesecoluinns
beforeturning
to theoppropriotesection,
it will beseen immediotely
if onyomendment
subsequent
to fhepublishing
of themonuol
t
is
opplicoble.
Bulletin
Number Dote Section Poge
No. Subiect
.\
\,-/
eF
8.

{'
VEHICLE
IDENTIFICATION.
(Chossis
Numbering)
Commencing
ot thelst. of Jonuory
1970,
o new
formothosbeenused
for
Vehicle
ldentificotion.
An exomple
of o newchossis
number
is
givenbelow, together
with the
full identificotion
Both
chossisond
body
numbers
beingthesome
Denotes
yeor ondmonth
of monufocture
(1
970, Jonuory)
Denotes
theproductionbotch
Denotes
ihe chossis
number
E Denotes
the
model
As
there
ore
otpresent
l6 differentmodel
types,
the
following
codeswill be used
for
model
ideniificotion.
breokdown.
7001.010001E
7001
.0l0001
Elon
STD
Elon
STD
Elqn
STD
Elon
SID
Elon
S/E
Elon
S/E
Elon
S/E
Elon
S/E
Elon
Federol
Elon
Federol
Elon
i2'S'
Elon
*2'S'
Elon
+2'S'
Federql
Europo
Europo
Europo
Federol
NOTE:
Cornmencing
at 1st. Jonuory
7201
G.Britain
& N. lrelond A
Export B
G.Britoin
& N
.lrelond C
Export D
G. Britcin& N.lrelond E
Export F
G.Britoin
& N.lrelond G
Export H
Export 'J
Export K
G. Britoin & N.lrelond L
Exporf M
Expori N
G.Britoin
& N.lrelond P
Export O
Export R
tCoupe
Coupe
Convertible
Convertible
Coupe
Coupe
Convertible
Convertible
Coupe
Convertible
U'
1972,fhe'BotchNoi is no longerused.
Denoies
yeor ondmonth
of monufocture
(1972, Jonuory)
Denotes
the chossis
number
Denotes
themodel
8q.
\*_
Elon
0001
1072.

TECHN
ICAL DATA
UINDTX
!"tgftl""
Dimensions
Copocities
Engine:
Generol
Performonce
Cylinder
Hecd
Jqckshqft
Cronkshcft
Flywheel
Connecting
Rod
Gudgeon
(Pision)
Pin
Piston
Lubricotion
Fuel Syaiem:
Pump
Air C
leoner
Corbureit
ers
lgnition System:
lgnition
Timing
Sporking
Plugs
Distributor
Cooling Sysfem
Clutch
Georbox:
Becri
ngs
Adiustmeni
Rotios
Speedometer
Geors
Reor
Axle:
Beorings
Adiustment
Overoll Rcfios
Front Suspenslon
Steeridg
Reor Suspension
Brokes
Wheels & Tyres
Electrical Equipmenf:
Bottery
Fuses
Generqior
Storter
Alternstor
Lomp
Bulbs
Additionol
lnformsiion
:
Fuel Sysiem
Torque
Locding
Figures
-lgg:-
9
l0
't0
l0
1l
12
12
t2
t3
13
13
14
r4
14
t4
t5
l6
l6
17
17
l8
t8
l8
18
rI
r:i.:.
t?
19
19
20
20
20
21
21
22
22
22
22
23
23
24
25
8b
r?-

TECHNICAL
DATA
ii
,-__'\
DIMENSIONS
Wheelbose
Trock (otwheelhub):
Front
Reor
- Series
l, 2
- Series
3 onwords
Overoll:
Lengfh
widrh
Height
- Series
l, 2
- *"::;:*"""-
Convertible
Ground
cleoronce
(design)
Turning
circle - Series
|, 2, 3
Series
4
Kerb
weight(unloden):
Series
I.
Series
2 l
Series
3:
84
in. (213.4
cm.)
47.O94in.
(l19.6
cm.)
43
"4375
in. (123
cm.)
47
.06
in. (l
19.5
cm.)
145in. (368.3
cm.)
56
in
. (142.2
cn.)
45.25
in. (l
15cm.)
46.5
in. (lt8
cm.)
45.5
in.
(115.6
cm.)
6
in.
(15.2
cn.)
29
ft.6
in.
(9
m.)
33
ft.6
in.
(10.2
m.)
l410lbs.
(63e.5
kg.)
1485
lbs
. (673.5
kg.)
1520
lbs.
(689.5
kg.)
1530
lbs.
(69a
ks.)
1530
lbs.
(694
kg.)
1540
lbs.
(698.s
kg.)
1540
lbs.
(698.5.
kg.)
1550
lbs.
(703
kg.)
1530
lbs.
(694
kg.)
1540
lbs.
(698.5
kg.)
Coupe
- STD
Coupe
'S/E
Convertible
- STD
Convertible
- S/E
Series
4:
Coupe
- STD
Coupe
- S/E
Convertible
- STD
Convertible
- S/E
L-,)
t4
9.

CAPACITIES
Enginesump
(including
filter)
Georbox
Reoroxle
Coolont
(with
heoter)
Fuef
- Series
1, 2, 3
- Series
4
ENGINE
Generol
Number
of cylinders
Copocity
Stroke
Bore
- Grode
I
- Grode
2
- Grode
3
- Grode
4
Compression
- Rotio
- Pressirre
(ot
seo
level)
Perfonnonce
MoxBHP
@
r.p.m
Mox Torque
@r.r.t .
Roodspeed
per
11000
r.p.m. in fop
geor:
7! pints
(4
litres;9 US
pints)
l$ pints
(.99
litres,2.1USpinfs)
2
pints
(l.2litres;
2.4US
pints)
l4 pinfs
(7.9
litres;
'16.8
US
pints)
l0 golls.
(45
litres;
l2 US
golls.)
9* golls.
(42
litres;
ll US
Solls.)
4
95.06
cu.in.
(1558
cc.)
2.864
in. (72.746
nn.)
3.25N/3.2503
in. (82
.5s0/82.558
mm.)
3.2503/3.2506
in
. (82 .558/82.565
mm.)
3.2506/3.2509
in
. (82
.56s/82.573
mm.)
3.2509/3.2512
in
. (82
.573/82.580
mm.)
9.5:l
lnexcess
of160lbs.sq.in.
(11
.248
kg.rq
.cm.)
Eoch
cylinder
within
20
lbs.sq.in
(l .406
kg.tq
.cm.)
ofeoch
other.
105
@
5,500STD;
108
@
6,000S/E
108lbs.fr.
(14.931
ks.m.)
@
4,000
16.50m.p.h.
(28.55
k.p.h.)
17.62m.p.h.
(28.35
k.p.h.)
18.10
m.p.h
. (29.13
k.p.h.)
17
.41
m
.p.h
" (28.01
k.p.h
.)
18.50m.p.h
. (29.77
k.p.h.)
3.90
3.77
3.55
3.77
3.55
I finol
drive
with5.20
x 13tyres
I finol drivewith145
x l3 tyres
I finoldrivewith145x 13tyres
I finol
drivewith155x 13tyres
l finol
drive
with
155
x l3 tyres
I
L-
10.
r+

CvlinderHeod
Moteriol
Gosket
Cylinder
heod
identificqtion
- Srnoll
vo!ve
- Big
volve
Cylinder
heod
dePth
- Smoll
volve
- Big
volve
Mox. permissoblemetot
removol
- Smoll
volve'
- Big
volve
Volvetiming
- Inlet
oPens
Inlet
closes
Exhoust
oPens
Exhoust
closes
Angle of volveseols
ond
foces
Volves:
Heod
diometer
- Inlet
(except
Sprint)
- Inlet
(Sprint)
- Exhoust
Stem
diometer
- Inlet
- Exhoust
Stem
cleoronce
in guide
- Inlei
-? it - Exhoust
Cleoronce
(cold)
- Inlet
- Exhoust
(to Engine
9951
)
- Exhoust
(from
Engine
9952)
Volve
sprinqs:
ffi TyPe
Free
Length
- lnner
Outer i
Rote
- Inner
@ .92
in- (23.4
mm.)
- Inner
@ 'Sa
in. (1
4.7 mrm.)
- Outer
@
t.t7 in. (29.7
mm')
- Outer
@ ,,83
in. (21
.I mm
')
Volveguides:
' Internol
cjio. (to reom
cfter fitting)
Aluminium
Copper/osbestos
'S'(&Fed.
Big
volve)
'N' or
'H' ( &S/E
Stromberg)
4.638/4.643
in. (11
.78/11
-79
cm.)
4.s98/4.603
in. (l
I .68ll'l
.69
cm.)
.M5
in.
(1
.14
mm.)
.010
in.
(.254
mm.).
220
g.T.D.C.
)
A)
62-A.B
.D
.c.
j sro,
620
B.B.D
.c. )
220
A.T.D.c,)
450
1
.526/1.530
in. (38.760/38.thz
mm.)
1
.560/1.566
in. (39.624/9.776
mm.)
| .321/1,325
in. (33
.553/33
.555
mm.)
.310/.311
in. (7
.874fr
'899
mm.)
.310/.311
in.
(7.874n-899
mm.)
.00
f
3/.0023
in
. (.cA7/
.058
mm.)
.0025/
.0030
in. (
.063/.076
mm
')
.oO5/
.OO7
in. (.127/
.177
mn.)
"006/.008
in. (.152/
.203
mm.)
.OW/
.01'l
in, ( .228/
.279
mm.)
Duol
I.130
in. (28
.70
mm
.)
1.450
in.
(36.83
mm.)
12.4
lbs.
(5.6
kg.)
33.5
lbs.
(15.2kg.)
45lbs.
(20.a
ks.)
'109
lbs.
(ae.aks
-) '!
.31'13/.3123
in. (7 .932
mm.)
260B.T.D.C.)
660A.B.D.c
l
660
B.B.D.C.)
260A.T.D.c.)
Ei
\-
r-' :::.
I
1074
Elon lt.

-\,
Length
- lnlet
Exhoust
Fitted height
obove
heod
Volve guides
Oufside
diorneter
of guide
- All engines:
Stondord
.001
?n
. (.0254
mm.)
oversize
.005
in. (.127
mm.)
oversize
.006
in. (.1524
mm.)
oversize
Diometer
of bore
in cylinder
heod
- All engines:
' Stondord
:001
in
. (.0254
mm.)
oversize
.005
in. {,127
mm.)
ovenize
,006
in. (.1524
mm.)
oversize
Interference
fit - All guides
- All engines:
Volve seot
inserts
Ouiside
diometer
of inserf
- All engines:
Stondord
.005
in
. (.127
mm.)
oversize
.010
in
" (.254
mm.)
oversize
.015
in
. (.38'l
mm.)
oversiz
e
Dibmeter
of bore
in cylinder
heod
- All engine.s:
Stondord
.005
in
. (.127
mm.)
oversize
.010
in
. {.254
mm.)
oversize
.0.|5
in. (.381
mm.)
oversize
Inierference
fit - All inserts
-All engines:
Elon llo
1
.6300/1.63.|0
in. 1
.5050/'l
.5060
in'
(4\.402/41
.427
mm.) (38.227/38.252mm.)
1
.6350/1.6360
in
. I .5100/l
.5'l
l0 in.
(41
.529/41
.554
mm.) (38.354/38.379
mm.)
.0025/.0045
in'
(.521/.1l4
mm') 1074
1.520
in.
(38.608
mm.)
'l
.480
in. (37.592
mm.)
.320
in.
(8.128
mm.)
lnlet& Exhoust
.5000/.5005
in.
(12.700/12.713
nn.)
.5010/.5015
in.
(12.725/12.738
mm.)
.s050l.5055
in.
(12.827/12.839
mm.)
.5A60/
.s065
in.
(12.852/\2.865
mm
.)
.499Q/
.4*5 in.
(12.675/12.687
mm.)
.5000/
.5005
in.
(12.700/12.713
mm.)
.5M0/
.5M5
in.
(12.802/12.814
mm.)
.5050/.5055
in.
(12.827/12.839
mm.)
.0005/.0015
in.
(.0127/.038]
mm.)
ln
let
1
.6235/1
.6245
in.
(41
.237/41
.262
mm.)
1
.6285/1
.6295
in.
{41
.3U/41
.389
mm.)
1
.6335/1.6345
in.
(41
. 491
/41.51
6 mm .)
1
.6385i1.6395
in.
(41
.61
8/41
.643
mm.)
| .6200/1.6210
in
.
(41
.l 48/41
.173
mm.
)
1
.6250/1
.6260
in.
(41
.275/41
.300
mm.)
Exh
oust
1
.49e5/1
.4995
in.
(38.%2/38.087
mm.)
1
.5035/1.5(X5
in.
(38.1e9ft8.214
mm.)
I .508s/l
.5095
in.
(38.31
6/38.214
mm.)
.|.5135/1
.5145
in.
(38.21
4/38.23e
mm.)
1
.4950/1
.496Q
in.
(37
.973/37
.998
mm.)
I .5000/l .5010
in.
(38.100/38.'l25mm.)

Comshofts:
Journol
diometer
End
floot
Beorings
- Number
Com
followers:
Borein heod
Outsidediometer
Followertoheodcleoronce
Joclchoft
Beorings
- Number
- TyP"
- Lengfh - Front
- Centre
- Reor
- Runningcleoronce
Journol
diometer
End
floot
- Typ"
- Runningcleoronce .0005/
.002
in. (.013/.050
mm.)
1
.000/1.0005
in. (25
.4/25.413mm.)
.003/.Ol
0in. (
.076/.254mm.)
5
Steel
bocked,
whitemetol
1
.375/1
.3756
in. (34
.92s/34.940mm
.)
1.3742/1
.3745
in. (34.9M/34.912
mm.)
.0005/.0014
in. (.013/.0%
mm.)
3
Steelbocked,white
metol
.75
in. (19.05
mm.)
.64
in. (16.26
mm.)
.75
in. (19.05
mm.)
.001/.002
in. (.025/.050
mm.)
1
.560/1.5605
in. (39
.624/39
.637
nm.)
.002s/.0075
in. (.063/.190
mm.)
Crqnlahoft
Bolonce Within
.2
oz.in.
(14.42
gr.cm.)
Diometer
- Moin
iournols 2.1255/2.1260
in. (53
.987/54.000
mm.)
- Cronkpin 1.9370/l
.9375
in. (49.199/49.21I
mm.)
End
f
loot
- Dimension .003/
.011
in
. ( .076/.279
mm.
)
- Controlled
by Thrustwoshersoncenfremoinbeoring
Beorings
- Number 5
- Type Steelbocked,
leod
bronzewith leod
overloy
Runningcleoronce .OiO\s/.0030 in. (.038/.075
mm.)
Moximumundersizefor
regrind .03
in
. ("762
mm.)
Flywheel
Moximum
runrcut
(loterol) .004
in. (.101 mm.)
Storfer
ring
geor
- Run-out
- Lolerol .016
in. (.406 mm.)
- Rodiol .006
in. (.152
mm.)
12.
r3

ti
Connecting
Rod
Typ"
Moteriol
Distonce
bcfween
centres
Beorings
- Typ"
- Running
cleoronce
- End
floot oncronkpin
Smollend
bore
(bushed):
Grode'A' (silver)
Grode
'B' (green)
Gudgeon'(Piston)
Pin
TyP"
Locotion
Diometer
- Grode
'A'
- Grode
'B'
Closs
of fit
Piston
TyPu
Moteriol
Length
Compression
height
Moximum
permissible
weightvoriotion
per
set
Rings
- Compresion
- Oil control
Diometer
- 'A' type- GrodeI
- Grode
2
- Grode3
- Grode
4
- 'C' type
- Grode
I
- Grode
2
- Grode3
- Grode4
'H'section
Steel
forging
4
.799/4
.801
in
. (t
2
.19/t
2
.24
cn
.)
Steel
bocked,
leodbronze
withleodoverloy
.0005/.0022
in
. (.01
3/.513
mm.)
.004/.010
in. (
.l}t/.254 mm.)
.8124/.8125
in. (20.635/20.637
mm.)
.8125/
.8127
in
" (20.637/20.642
mm.)
F
looting
Circlips
.8r21/
.8122
in.
.8122/
.8123
in.
Finger
push
fit
(20.627/20.628
mm.)
(20.628/20.632
mm.)
Solidskirt
Tin-ploied
oluminium
ollov
2.687
in.
(68.250
mm.)
| .s36/1.538
in
. (39 .014/39.065
mm.)
4 grommes
2
I
3.2470/3.2473
in. (82 .474/82.481
mm.)
3.2473/3
.2476
in. (82
.481/82.489
mm.)
3
"2U6/3.2479
in
" (82 .489/82.497
nn.)
3.247e/3.2482
in. (82
.497/82.504
mm.)
3.2447/3.2470
in. (82
.466/82.474
nn.)
3
.2470/3
.2473
in. (82
.474/82.481
mm.)
3.2473/3
.2476
in. (82
.481/82.489
mm.)
3.2476/3.247e
in. (82
.489/82.497
mm.)
t3.
\,
r)

Piston
cfeoronce
incylinder
borei ,
'A' type .0027/.0033
in
. (.068/.083
mm')
'C' type .0030/
-0036
in
. (.076/.091
mm")
Gudgeon
pinboreoffset .04
in. (l.016
mm.)towords
thrust
foce \-,,,
Ring
gop
(fitted)
- Compression .009/.014
in
. (.229/.356
mm.)
- O
il control .010/
.020
in
. (.
254/
.508
mm')
Piston
ringto groovecleoronce:
Compression .0016/
.0036
in
. (.041/
.091
mm')
Oil control .0018/.0038
in
. (.046/ '097
mn')
Lubricotion
System
Pump:
Typ. Eccentric
lobe
Drive Georon iockshoft
Inner
ond
outer
rotor
cleoronce .006
in. (.15
mm.)
Moximum
Innerond
outer
rotor
floot .005
in. (.13
mm.)
Moximum
:'':i;:i":
Outer
rotor
to housing
cleoronce .010
in. (.25 mm.)
Moximum
Normol
pressure
(hot) 35/40lbs.in.sq (2.4/2'8
kg.cm.sq.)
Filter FullFlow
(renewoble
element
or
'
fh
row-owoy'
con
i
ster)
I
rlii
;;,. FUEL
SYSTEM
, Prmp
- Operoiion
- Pressure
Air cleoner
type
Corburetfer
- TyPeond
number
a,
Slow
runningspeed
- Settings:
\-
sTD. s/E
Choke 36T'm
' F".
Moin
iei I15 M
Air corrector
iet 200 150
Slowrunning
iet 45F
.9 50
F.8
Accelerotor
pump
iet 40 40
Accelerotor
pump
stroke l0 mm. l0 mm'
Storteroir iei 100 I00
Storter
petroliet F.5/l0O F
.5/100
Emulsion
Tube F.l
I F.l
I
Needle
volve 1.75 | .75
Air trumpei
lengih 1.75
in. 1.75
in.
(4.44cm
.
) (4
.44 cm.)
Lever
byeccentric
oniockshoft
1.25/2.5
lbs.in.sq
. (.087/.176
ks.cm.sq.)
Poper
element
(dry)
Weber
40 DCOE
18or, 40 DCOE
31, Two
800/900
r.p.m.
40DCOE
l8
,i
t
14.
a,o
u7l Elon

- Settings
:
Choke
Moin
iet
Air coriector
iet
Slow
running
iei
Accelerqtor
pumP
iei
Accelerotor
PUmP
stroke
Storter
oir iet
Siqrter
peirol iet
Emulsion
tube
Needle
volve
Air trumpet
length
Corburetter
- Type
ondNumber
- 5ettlngs
:
Slow
running
speed
Needle
Spring
Colour
Domper
oil
- Settings
:
Slow
running
speed
Needle
Spring
Colour
Domper
oil
IGNITION
t/5TElv\
Typu'
Firing
order
No.1
cylinder
lgnition
odvonce
control
lgnition
timing
(stotic)
:
Weber
corbureiters
('A' pistons)
Weber
corburetters
('C' pistons)
Weber
corburetfers
(Spri
nt)
Zenith' Stromberg
corburetfers
(non
Exhoust
Emission)
Zenith - Stromberg
corbureiters
(Exhoust
Emission)
Col
I
40 DCOE
3l
I
ISTD.
30mm.
lt5
200
50
F.8
40
l0
mm.
r00
s/E
32mm.
115
r50
50F.8
40
l0mm.
100
SPRINT
33mm.
120
155
50F.8
35
l0
mm.
100
F.s/100
F.ll
1.75
I
.5
in.
3.8cm.)
25or
175
CD
2SE,
Two
\_
r .s/100 F.5/100
F.l
1 F.l
I
1
.75 1
.75
I
.5
in. I
.5
in.
(3.8
cm.) (3.8
cm.)
Zenith-Stromberg
1
75
CD
.|75
CD
25
(non-Emission)
800/900
r.p.m
.
B.IY
Noturo
I
sAE
20v50
175
CD
25E
(Exhoust
Emission)
950r.p
.m.
B.IG
B
lue/block
sAE
20v50
"-iG
.'-l-l
.r/i
'Coilond
distributor
|
,3,4,
Neorest
to rodiotor
Fully
outomotic
l20
B.T.D.C.*
(40953)
100
B
.T
.D
.c." (40953)
tzo
B.T.
D.C
.* (41
189)
90
B.T.D.C."
(40953)
50B.T.D.C.*
(41225)
Lucos
lA.l2
&
&(4r
r
8e)
41
1
8e)
L15

Sporking
plugs:
TyP"
- Non Exhsust
Emission
- Exhoust
Emission
GoP - Non Exhoust
Emission
- Exhoust
Emission
* The
obove
ignition
settings
moY
Distributor
Typ" - Non Exhoust
Emission
- Exhoust
Emission
Direction
of rototion
(from
obove)
Drive
Contoci
brecker
goP
Conioct
lever
sPring
tension
Firing
ongles
Com
dwell
ongle
Despoich
No. - Weber
corburetters
- Zenith-Stromberg
corbs.
(Non Exhoust
Emission) 40953
- Zenith-Siromberg corbs.
(ExhoustEmission) 412254
Centrifugol
odvonce
- DisfributorDespotch
No' 40953
ChomPion
N7Y
Aufolite
AG .32(for
sustoined
high
speed
driving
use
ChomPion
N7Y)
.020/
.023
in. (' 508/
'584
mm')
.025
in
. (
.635
mm')
need
sLIGHT
otteration
fo rneet
locol
fuel requiremenis.
23
D
.4 (eorlymodels
25
D.4)
25
D.4
Anti-clockwise
Geor
oniockshoft
.014/
.016
in. (
.35/
.40
mm')
18/24
oz. (
.51/
-68
ks.)
oo,
9oo,
l8oo,2loo
! lo
6oo
13o
40953,
STD;
41189A,
5/E
ond
SPrini
\
t
crqlkshoft
r.P.m.
Below 500
.1,000
I,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
5,500
6,000
6,500
cronkshaft
degrees
B-T.D.C. (Add
Storic
Seiiings)
No advonce
5.6
10.5
16.0
16.8
17 R
18.6
19.5
20.5
21.0
22.5
23.0
24.0
16.
j
M71
Moximum
odvonce
Llon
4-Z

t/
?entrifugol
odvonce
- Distributor
DespotchNo :il;: ;"" 50
sucrion
,."ioracqpsure
fi*ed.
cronkshoft
r.p.m.
Below .|,000
1,250
1,500
1,750
2,000
2,250
2,54A
- N'umberof springs
Clufchossemb
ly odiustment
Bore
of - Moster cylinder
- Slovecylinder
crqnkshoft
degreesB.T
.D.C.(Add
stoticsetfing)
No odvonce
2.4
1.6
.
6.8
9.2
1t
.6
14.0
Moximum
odvonce
Borg& Beck,
diophrogm
spring
Hydrou
lic
8
in.
(20.3
cm.)
6
SeeSection
'Q'
5/8 in (15.87 mm
.)
7/8 in. (22.22
mm
.)
r\
\-cooLrNG sYsrEM
Moke ondType
Operotion
(-_rDtiu"n Plote
- Diometer
Typ" Cenfrifugol
PumP
ond
fon
Rodiotorcop
relief
volve
pressure l0lbs.in.sq. (.70
kg.cm.sq.)
Thermostqf
nominol
opening
temperoture 78oC. (see
Section
'K')
Fon
belttension
(ct longest
run) 1in.(t2.7mm.) totolup-cnd-down
movement.
-.
f
mpef
ler vones
to woter
pumphousing
cleoronce O2O/.OgO
in. (.508/ .762 mm.) ry
CLUTCH
17.
U
Elon 1472.