Tecumseh carb flooding

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Old 02-26-10, 04:06 PM
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Tecumseh carb flooding

I have a Craftsman snow blower with a Tecumseh 5 HP engine on it. Looking up the original manual for this unit I noticed it had a Lausen carburator part number 632107 on it. We had major snow today and I got it running as usual and half way thru it bogged down and stopped running. I noticed fuel dripping from it and took in the garage and had a look. Seems fuel is constantly filling the bowl so i took it apart cleaned the needle and seat and put it back on. A couple of seconds after installing the fuel line fuel starts comming out of the carb from a small hole cast into the side of it. It seems the needle is not seating to stop the fuel from entering the bowl. I dont notice any gasket in the seat. not too familiar with these small carbs. Im more a Holley Double Pumper guy. What am I doing wrong?
 
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Old 02-26-10, 04:28 PM
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Originally Posted by ck1 View Post
I have a Craftsman snow blower with a Tecumseh 5 HP engine on it. Looking up the original manual for this unit I noticed it had a Lausen carburator part number 632107 on it. We had major snow today and I got it running as usual and half way thru it bogged down and stopped running. I noticed fuel dripping from it and took in the garage and had a look. Seems fuel is constantly filling the bowl so i took it apart cleaned the needle and seat and put it back on. A couple of seconds after installing the fuel line fuel starts comming out of the carb from a small hole cast into the side of it. It seems the needle is not seating to stop the fuel from entering the bowl. I dont notice any gasket in the seat. not too familiar with these small carbs. Im more a Holley Double Pumper guy. What am I doing wrong?
I would check the float for pinholes that would allow fuel to enter the float. You can usually tell by shaking.
 
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Old 02-26-10, 04:43 PM
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Float definately has a small amount of fuel in it. Does the needle seat in some sort of gasket to seal or is it just metal to metal seal?
 
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Old 02-26-10, 06:18 PM
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replace the float. as far as the seat, it is a small round almost a foam like material that is just pushed in the hole. Needs to be seated with a punch, just by pushing it in with the punch. Also, the groove side goes in first.
 
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Old 02-26-10, 06:40 PM
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Thanks for the replys Ill try the suggestions tommorrow.
 
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