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Zenith 26JS - 3 Carburettor
#1
Hi,
 I have a Zenith 26JS - 3 Carburettor which appears to be in very good condition. It is from an Austin A30 803cc engine.
I intend to use it on my special with a "Nippy" inlet manifold. Does anyone have experience with this set up. I am wondering what jet changes, if any may be required.
The general specifications are,
Choke, 18mm  --Main Jet, 95  --Main Air Jet, 160 --Slow Running Jet, 40 --Slow Running Air Bleec, 40

Tod
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#2
I don't have experience of that particular carb but I have successfully run Zenith 30V carbs of various types such as used Big 7's and 8's amongst others. You probably will need different jetting, what you have may be a bit rich.
Black Art Enthusiast
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#3
I have a Zenith downdraught with 26mm choke on my RN saloon. I would try it as it is and get new jets if running rich. Can't remember jet sizes as it's 17 years since I fitted it. Mine has a home made tubular inlet and exhaust manifold. Car pulls and revs well, better than the side mounted 26 VA.
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#4
Just looked at carb on my RN. It is 26 VME which has nominal bore of 26mm and looks to be 18mm choke.
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#5
Many thanks for the replies and advice. I have contacted Burlen for jets.

Tod
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