[Farmall] Super A Carb Leak

[szabelsk at gdls.com]

Have you tried tapping the carb when it leaks to see if that stops the 
leaking? When I first got my Cub the carb would randomly leak if I left 
the valve open, but not when I had it shut. When the valve was open and 
the card would leak, I'd tap on the carb and the leaking would stop 
(sometimes I just hit it with my fist a couple of times). I figured the 
float was sticking or wasn't properly set and was leaking when I wasn't 
parked on level ground. So I took the carb apart and did all the checks 
for float height, fuel in the float, etc. I even brought a rebuild kit 
after tearing into it a couple times. What I figured out was that it was 
the float sticking. It would move freely on the pin when I had it all 
apart, but figured it had something to do with not being totally level 
when parked. So I held the carb at a slight angle and noticed that it 
would sometimes stick when I moved the carb back and forth. The float 
itself wasn't touching the sides of the bowl. I squeezed the ends of the 
float together a little where it rotates on the pin so that it had a 
little more play side to side. Hasn't leaked since. So the width of the 
float at the pin was apparently the problem, causing the float to stick 
against the side of the bowl when not on level ground. Now I can even 
leave the valve open and it doesn't leak.

Carl Szabelski



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