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Fig. 2-71. Checking the damper oil
l
.
Damper piston
2.
Oil approved as
"Auto
mati
c
Tran
sm
ission
Fluid, Type A"
Before any adjustment or
repair
to the carburettor is
carried
out,
the following should be checked
and,
if
necessary, remedied:
Valve clearance, spark plugs, compression,
contact
breaker
(dwe
ll
angle) and
ignition
setting.
Also check that there
is no
air
leakage
on
the
intake
side and that the
air
cleaner
is
not blocked. To b
e
on
the
safe
side, check also the flap function of
th
e
comtant a,iir temperature
unit.
(See page
2 :
38.)
The functicm of the throttle controi
and
throttles
should be checked as weil.
It shou'ld
be noted here
that the
engine drops its
idling
speed, after the
eng
in
e
speeld
has
been raised, somewha-t more
slowly
than
with a carburettor without
a
by-pass valve.
SETTING THE CARBURETTOR
The
best
settin
g of
the
carburettor
is
obtained by
using
a CO-meter.
However,
the setting can be checked
without
the use
of this meter,
bUl
t
if
the checking wfth
e
ith
er
of these
methods
results in unsatisfactory
running of the engine
and it
has
been established that the fault
is
due to an
"overrich" carburettor or "loo
lea
n"
fuel
mi~ture,
the
carb
urettor
nozzle should be adjusted a special tool
in accordance with
Workshop
Bulletin P-08-13.
2
: 32
Fig. 2-72. Thrott le contro
i
l
.
Bush
7.
Ba
ll
joint
2.
Link
rod for peda
l
8.
Leve
r
3.
Contra
l
shaft
9.
Lock
w
ire
4.
Lever
10.
Sto
p
for
lever
5.
Link rod
11
.
Bracket
6.
Lock
n ut
SETTING WITHOUT CO-METER
l.
Check tha
t
there is oi
l
in
the damper
cy linders.
See
under
"Per
iodi
ca
l
Check".
2.
Run
the
eng'in
e warm
.
The adjustment shou·ld be
carried
out
wir
th
in
a
bout
10minutes
afte'r the
coo lant
j'hermostai'
has
opened.
(On
e
way
of find-
ing
thi
s
out
is
by feeling the upper
radiator
hose
at
the radiator which
sho
uld
stalit
to get warm.)
3.
Adju
st
the
·eng ine speed
to
800 r.p.m.
with the
throttl
e
stop screws
(2,
Fig.
2-49).
The speed shou
ld
be adjusted to 700
r.p.m.
for
a
vehicle
wi,
t h auto-
matic tran'smission
.
(If -the
engine does not r,educe
its
idling
speed
,
see
under the heading
"
By-pass
valve
".)
N
.B.
Screw equal
ly
for both ca
liburettors.
Check
to make sure that bolh
carbure-ttors have
the
Fig
.
2-73.
Sett
in
g
the
controi
A=
O.l
mm (0 .004")
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