karel
New Member
Posts: 3 
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Post by karel on Sept 5, 2015 19:49:39 GMT
Hi, can somebody provide any information about Zenith 36V12 carburettor for the pre war 2,5 liter engine? Jet sizes, level in the float chamber? |
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Post by silverstreak on Jun 6, 2016 22:08:33 GMT
Newnes motor repair & overhaul data sheet from the early 50s says- 36VI2 choke tube 32. main jet 130, Comp jet 100, slow running jet 75, economy jet 150, , capacity tube 2, progression jet nil, needle setting 2.5(dont ask me!) starter- venturi 5, starting jet 140, control jet 120. Dilution plugs --. They also show 42VI2 as fitted same jets except compensating jet as 110.
Dont forget that modern fuel is different to 1930s, and current thinking is suggesting that a richer tick over may be desirable to compensate for ethanol/higher volitility. I havnt looked but try looking up the zenith carburetter co. on the web for diagrams. you will need gasket pack 11 or 13 for the gaskets.
I dont have a big4 so cant help any further.
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