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Mosaire extra air valve
#1
In the Nicholson book "The Austin Seven Book" there is an advert for the"Mosaire" extra air valve which appears to make many claims about increases in performance, economy and reliability.
I can find very little on the internet about this device and wonder if anyone has ever seen one or read an contemporary reports. It looks like " snake oil " to me but am intrigued.
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#2
I remember having an extra air valve which may have had that name, and I fitted it to my first A7, an RP. I recollect that it could be adjusted so that it suited (?) different capacity engines. It fitted between the manifold and carburettor the plate component being perhaps 3/16" thick and the valve sticking out radially with the extra air hole through the thickness of the fitting plate. I can't remember it making any difference, but I think I was worried about burning valves and disposed of it. Mainly I economised in 1959/60 by running on 50% paraffin on long journeys!
Robert Leigh
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