I had an morrisGpo van,Itook carburattor of and found in itake a in brass bit with holes and wire entwine in i
C J Caple.Polperran St Erme TRURO TR4 9BX.
Answers:
I remember Amal carbs, not an expert on old Austin/Morris stuff though. I know you said the wires went nowhere, but is it possible that this was either a form of air heater for cold mornings?
Does the carb have a manual choke?
Perhaps the Austin/Morris owner's club can help you? There must be one!
Amal made carburettors and always fitted to British bikes of the 50s and 60s.
This sounds like a restrictor to prevent the gpo van from travelling too fast!
You used to be able to get a gauze to fit in the carb throat to improve fuel air mix. different density gauze give a different mix, an early attempt at cheep tuning, they wer't very succesfull.
check manuals
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