[AT] Super A Idle Puzzle

[WILLIAM HALM]

Ben, 

I had the same problem with an 8N. The engine would run a full throttle, could not figure it out. Then as I was about to tear into the governor the engine went to idle speed and would not throttle up. It turned out to be the throttle butterfly in the the carb, the screw heads broke off. I replaced the two broken brass screws, re-assembled after checking the float level, installed the carb and that fixed the problem.

Good luck with yours.

Bill
Aurora, Indiana



----- Original Message -----
From: "charliehill" <charliehill at embarqmail.com>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Monday, December 21, 2009 8:19:21 PM GMT -05:00 US/Canada Eastern
Subject: Re: [AT] Super A Idle Puzzle

Ben you've got some sort of a governor issue.  Some of the guys more 
familiar with IH tractors will be better able to help you. It could be as 
simple as a return spring out of place or it might be a mechanical problem 
within the governor.

Charlie
----- Original Message ----- 
From: "Ben Wagner" <ben at olde-books.com>
To: <at at lists.antique-tractor.com>
Sent: Monday, December 21, 2009 8:02 PM
Subject: [AT] Super A Idle Puzzle


> Hello,
>
> Since some of you kindly wanted me to ask any questions that come up
> during the restoration of my 1948 Super A, I think I will take you up on
> your offer! :-)
>
> Here's the puzzle: I ran the tractor before I really tore her apart.
> The engine works fine, but it won't idle.  I pull the throttle lever
> back, but the throttle stays full open.  However, if I pull on the shaft
> going to the carburetor from the governor, the engine will finally
> idle.  As soon as I let go of the shaft, it throttles back up, almost
> like it can't hold the throttle in idle.
>
> A friend said that he thought it was in the "automatic idler," but I
> have never heard of a part called this.
>
> My guess is that either I am missing a spring that holds the throttle
> shut, or there is something amiss with the governor.  I have the parts
> book, but I can't see a missing part.  I appreciate any help any of you
> can give!
>
> Thanks, and Merry Christmas!
>
> Ben Wagner
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