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Float level

B

BigTone

Member
This zenith carb in my Super A calls for 1 5/32 but it leaks at that setting. I talked to a guy yesterday and he laughed and said just set it level. This sound right or is the 1 5/32 a must? Thanks
 
Our SC has probably the same carb, & we had to
re-set the float 4 times to get it right. Float level
figure was only a starting point for us.
Jim
 
There are reasons besides the float setting why a carburetor would leak. What makes you so sure it is the float setting?

For example, the float could be hanging up on the carb bowl, and no level setting will stop that. The needle and seat could not be sealing properly; I've seen that many many times. The needles and seats we get these days are not very precise and can leak.
 
(quoted from post at 04:39:46 09/21/17) There are reasons besides the float setting why a carburetor would leak. What makes you so sure it is the float setting?

For example, the float could be hanging up on the carb bowl, and no level setting will stop that. The needle and seat could not be sealing properly; I've seen that many many times. The needles and seats we get these days are not very precise and can leak.
Click to expand...

Exactly. That 1 5/32" float setting has been working just fine for around 70 years, so why question it now?
 
When you get the carb assembled after any work,
inverting the carb several times listening to
see if the float is "loose"----not hanging up
is standard practice.

As far as numerical float level----whatever works.
Jim
 
(quoted from post at 06:47:22 09/21/17) When you get the carb assembled after any work,
inverting the carb several times listening to
see if the float is "loose"----not hanging up
is standard practice.

As far as numerical float level----whatever works.
Jim
Click to expand...

Yes, and also put your mouth on the fuel inlet fitting and blow. If you can easily blow into the carb while it is upright, but you CANNOT blow into it while it is upside down, then you know the float and needle valve are working as intended.
 
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