valve
It appears to be a contradiction at first ..a valve that allows more fuel into the flow, being called a economiser .
I know the series 1 Land Rover Solex PBI-2 has one , it operates on a vacuum principle, it opens/closes according to the vacuum present in the inlet manifold . A rubber diaphram is ported to the inlet manifold and a valve in its centre , with a spring , opens with low vacuum present. Something along those lines anyway !
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1940 cab 11 C8
1940 Morris-Commercial PU
1941 Morris-Commercial CS8
1940 Chev. 15cwt GS Van ( Aust.)
1942-45 Jeep salad
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