[AT] Super A Idle Puzzle

[Steve W.]

Ben Wagner wrote:
> 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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> 

Sounds like the governor has a problem. Check the return springs and the
thrust bearing on the shaft. The weights should move freely and return
with the springs.

To adjust the governor, disconnect the rod between the governor and
carburetor.  Set the throttle to full throttle. Hold the carburetor
butterfly wide open. You should be able to reconnect the rod without
moving anything. If you cannot adjust the length of the rod until it
fits back on.

-- 
Steve W.