48 JD 'B' DLTX 71 Carburetor Bowl Vent
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Posted by John Kerber on September 30, 1998 at 18:26:32:
I recently bought about a 1948 all-fuel JD
Model B (serial number plate is gone)and
the carburetor kept flooding over even when sitting.
After many wasted hours, I realized the bowl
has to be vented or the gas just gets pushed out
into the intake. I double gasketed the bowl
and cut a slot in one of the gaskets to act as
a vent. Sure enough, the carb no longet floods, but
it will not run smoothly at all. It actually runs
smoother with the carb flooding over. At idle, it continuosly hunts and has a sharp
pop-pop instead of the thump-thump that I expect.
I soaked the carb a couple days but cannot get
what I think is the bowl vent clean(tiny hole on underside
of main body, inside of float bowl). Also, at idle, the
idle adjust screw has noe effect from wide open to all the
way closed. Is venting the bowl through the gasket causing
me to run poorly or is something else? Where exactly is the real vent, and where
does it vent to? Thanks for any help.
john.kerber@ps.ge.com
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