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Old 02-22-2018, 10:11 AM   #25
1930 coupe
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Join Date: May 2010
Posts: 226
Default Re: Leaking Zenith Carburetor

Most original floats will have a Z or a H stamped on the hinge.
Some reproduction floats are lighter than 31 grams because they are made from thinner brass. The picture shows the weight added at the factory to some of the floats. It is unusual for a float to be too heavy, unless it has excess solder on it or has some gas inside it. Make your sight glass then you will not be guessing.
I am not clairvoyant, just 45 years of doing research and working on model A's
A lot of people will tell you that a Zenith carb is no good and you need to get a different kind of carb. This is not true, a Zenith carb runs and idles very good if PROPERLY RESTORED, the problem is very few people have the skills to properly restore a Zenith carb so they get a bad rap.
Also some very old floats can have a dimple wore in it from rubbing on the needle valve, this dimple can cause it to stick sometimes and over fill with gas.
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