RUNNING ADJUSTMENTS
Fig.
28.
Carburettors.
1.
Air cleaners.
6.
Return spring.
2.
Dampers.
7.
Jet adjusting nuts.
3.
Piston lifting pin.
8.
Pivot pins.
4.
Gland nut.
9.
Jets.
5.
Jet spring.
10.
Choke cable.
11.
Mixture control rod.
7.
Whilst holding the jet (9) in its upper position, move the jet assembly
laterally
until the jet is concentric with the needle, then tighten
gland nut (4).
This condition has been achieved when the piston
assembly will fall freely and evenly, hitting the jet bridge with a soft
metallic click.
Withdraw the jet and re-check to see if there is any difference in the
sound of the impact, if there is and the second test produces a sharper
i
mpact sound, the centralising operation will have to be repeated until
successful.
8.
In the occasional obstinate case the jet adjusting nut (7) as well as the
spring (5) should be temporarily removed to enable the jet to reach a
higher position and make the centralising effect more positive. Replace
the spring (5), adjusting nut (7), jet (9), pivot pins (8) and
secure with new split pins after the successful conclusion of the operation.
Before replacing the air cleaners, replenish the dampers and tune the
carburettors, see pages 16 and 33.
35
SPORTS CAR
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