marvel schebler carb

Todd Heck · Apr 14, 2012

My bn runs great but i have noticed the carb is leaking thru a hole in front of the drain plug. I know that my a has the same carb and that little hole on it is not leaking. Is there a washer or somthing that i am missing. I know the drain plug has no felt or washer. Think that is where the let is coming from?
Thanks
todd

Greg K · Apr 14, 2012

It may be that the needle and seat is not closing all of the way, needle or seat is worn, or the float not adjusted properly. Does it do this when it is running or just when parked?

Wayne in MN · Apr 14, 2012

That carburetor hole is a drain for excess gasoline in case you overchoked the engine. If there is leakage it means the needle & seat are not shutting off completely.
If the engine runs fine, turn off the sediment bowl at the tank when you are through for the day. Just leave it alone unless a carburetor overhaul is in the future.

pete 23 · Apr 14, 2012

I will add that the "drip" hole must have a felt, or porous bronze insert in it to prevent dirt from going into the engine. Lots of engines have taken in dirt over the years due to no filter in that drip plug on any of these farm tractor carburetors.

marvel schebler carb

Todd Heck

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Greg K

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Wayne in MN

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pete 23

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