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Discussion Forum

Allis B skips under load

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05-20-2002 05:03:21

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I recently rebuilt my 1946 AC-b and when out plowing, it revs up and slows down very fast, as if the governor cant stabilize the engine speed. Pulling the choke out slightly helps a little bit but adjusting the carb makes no noticeable difference. Please help! Thanks!
-Nick, running rough in Jordan NY

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Kiwi Pete

05-27-2002 23:50:52

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 Re: Allis B skips under load in reply to Nick, 05-20-2002 05:03:21  
It sounds like it could be a couple of things to me...The surge spring is a given but also consider the cross arm that runs across from the governor to the rod connecting to the carby..what you may have to do is to take the governor cover off and bend the arm one way or the other to acheive the correct governing ratio - I fiddled with mine for a couple of hours till it was right...I found that prior to this I basically had no governor control at all...as for the surge spring I just ripped a bic biro to pieces and used that..works fine - You may have to re adjust the carby afterward...Hope this helps

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05-24-2002 04:14:10

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 Re: Allis B skips under load in reply to Nick, 05-20-2002 05:03:21  
The factory remove the anti surge spring on some of the later models, but you can add one pretty easy. Did you check your fuel supply? Do you have a later carb with the full power mixture adjustment?

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05-20-2002 09:58:09

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 Re: Allis B skips under load in reply to Nick, 05-20-2002 05:03:21  

There is an anti surge spring that connects to the rod to the carb throttle arm . Are you missing this spring?

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