FUEL
SYSTEM
(ej Feed the rocker lever bolt through
the double coil washer and the rocker
lever so that the platform of the lever
is on the left viewing the bolt head.
This assembly is fitted to the front
carburettor with a plain washer be-
tween it and the carburettor. Ensure
that the rocker lever moves freely.
(f)
Fit the throttle spindle return spring
anchor plate on the !onger end of the
spindle and anchor it on the web
provided. Follow it with the spring
and the end clip then adjust the tension
and lock the end clip with the pinch
bolt.
,
(g)
To the bottom half of the jet bearing
position the copper washer followed by
the jet adjusting sealing nut (threaded
portion uppermost) spring and secure
with the jet adjusting nut. Position
the alloy sealing ring, flatter side down-
wards, and the cork washer over the
thread of the jet adjusting nut.
(h) Insert the jet assembly through the
jet adjusting nut and bottom half of
the jet bearing from below. Position
the cork gland washer, the copper
gland washer, spring, a second gland
washer and cork gland washer on the
head of the jet assembly.
(i)
Position a copper washer on the
shoulders of the upper half jet bearing
and, with the shoulder uppermost,
balance the top half bearing on the
cork gland washer of the jet assembly.
(j)
Feed the assembly mentioned in (h)
and
(i)
into the carburettor body and
secure with the sealing nut.
(k)
Fit the float to the pillar of the float
chamber, this is symmetrical and can
be fitted either way up.
(1)
The needle valve body is secured in
the float chamber cover, pasition valve
needle and hinge lever and insert
pin. Adjust
as
described on page
23.
(m)
Assemble the splash overflow pipe to
the cap of carburettor float chamber
with a washer interposed between.
(n)
Fit the float chamber cover to the
float chamber and attach cap nut as
assembled in operation
(m).
The nut
is left loose at this juncture.
(0)
Fit the jet needle to the piston as-
sembly and ensure that its lower
shoulder is flush with that of the piston.
(p)
The piston and jet needle is now
fitted to the body assembly so that the
brass dowel in the carburettor body
locates the longitudinal groove in the
piston.
(q)
With the smaller diameter of the coil
spring downwards, position the spring
over the polished stem of the piston.
'(r)
Fit the suction chamber over the spring
and piston stem allowing the spring to
position itself outside the suction cham-
ber centre.
(S)
The suction chamber is secured to
the carburettor body by three screws,
these are fitted
but left loose
at
this
juncture.
(t)
The float chamber is now attached to
the carburettor body by the float
chamber attachment bolt. Two large
bore fibre washers with a brass washer
between are positioned between the
bolt head and the float chamber and
a small bore washer between the
float chamber and the carburettor
body. With the washers so placed the
float chamber is attached to the carb-
urettor body, the attachment bolt is
left loose at this juncture.
(U)
Looking at the intake end of the
carburettor body remove the right-
hand suction chamber securing screw
(left loose in operation
(S)
).
With
a shakeproof washer under its head
feed the bolt through the float chamber
steady bracket and replace to secure
suction chamber. The three screws
can now be fully tightened, the
&p
nut is, however, still left loose.
The
cap
nut of the cover is tightened to
secure the splash overflow pipe for
tuning purposes when fitted to the car.
Attach the jet lever return spring to
the position rovided betweeen jet
i'
assembly and oat chamber.
(v)
The jet and jet needle are now central-
ised. See page
19.
(W)
The damper assembly is fitted to the
suction chamber dry. The oil reservior
is not filled until the carburettors are
fitted to the car.
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