FUEL
SYSTEM
Page
L39
4.
Diaphragm incorrectly located or damoged: Check location with depression
cover removed. The depression holes
at the base of the air valve should be
in line with and towards the throttle spindle. Renew
diophrogm if damage is
evident. When replacin
g
depression chamber cover the domper ventilation
boss must be towards the air intake.
5.
Temperature compensator not operating correctly: With engine AND carbu-
retters cold, remove cover from temperature compensator assembly. Tapered
valve should be seated in this condition. Check operation by carefully lifting
the valve off its seat; when released, the valve should return quite freely.
If any damage should have occurred that prevents the mechanical operation
b
functioning correctly, the compensator unit should be replaced.
6.
After reasonable service, inspect the throttle spindle seals and thro,tle
spindle for fracture and wear respectively. Replace
if
necessary.
7.
Leokage at induction manifold joints. Re
-
make joints, facing up flanges os
required. Check that
'Q'
rings, adoptor flanges to manifold ore correctly
located.
Hesitation or Flat Spot
Possible
CalJses are as given for 'Erratic or Poor Idlin
g
1
, but with the following
additions
:
1.
Damper inoperative: Check oil level and top up with oil.
2.
Air valve return spring missing, or incorrect port fitted: Rectify as
necessary.
Heavy Consumption
Here again, any points that have been covered under the two previous headings can
contribute to heavy fuel consumption plus the following:
1.
Ensure chokc cable returns the cold start lever to the fully off position when
the choke control
is
pushed down. Adjust cable as necessary.
2.
Ensure there is not
o
fuel leakage from the float chamber joint, or sealing
plug
'0'
ring, due to damage of either or both parts.
ESPRIT
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