[AJD] 1950 A surging at idle

[Louis]

Try this site.   http://www.robertscarbrepair.com/tip1.htm  You also
want to look at your throttle disk. If it is worn at the top, it allows
air to leak and result in a rough idle.  Also, check your throttle shaft
and bushing there should not be any slop, but they shouldn't bind.  The
next thing to look at; by the throttle disk in the carb housing, there
are one or two small holes, depending on what carb you have.  You need
some real fine wire(I use wire from my wire feed welder), take and poke
that wire into the holes.  Those are some of your idle passages.  Before
you put the brass plugs back in, take your air gun (wand) and blow out
all of the passages, after you drill and poke.  You should also pull the
nozzle and clean that all up.  I realize that really isn't suppose to
affect the idle, but it all works together. Also, make sure your vent
passage is clear.

If you want, you can send the carb to me, and I will take a look at it.


Lou
 
Spiegelberg Restoration and Service, LTD.
440-965-7679
 
mailto:sales at srstractor.com
 
http://www.srstractor.com
 
 


-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
Of Chris C
Sent: Monday, January 03, 2005 7:13 PM
To: Antique John Deere mailing list
Subject: Re: [AJD] 1950 A surging at idle


Duane,

     I did pull all the plugs.  It has not been
drilled out since I had a carb shop work on it about 5
years ago.  I did run tip cleaners through all the
passages and orafices..  

                      Chris
--- Duane Larson <jdlarson at comcast.net> wrote:

> Chris,
> Sounds like you still have an obstruction in the
> idle passage somewhere in
> your carb.  Did you remove all the brass plugs and
> physically clean all the
> passages?  Carb cleaner will not get the job done.
> Duane Larson
> 
> ----- Original Message -----
> From: "Chris C" <jdnutinwa at yahoo.com>
> To: "ATIS LIST"
> <antique-johndeere at lists.antique-tractor.com>
> Sent: Monday, January 03, 2005 6:04 PM
> Subject: [AJD] 1950 A surging at idle
> 
> 
> >
> >
> >   Ok,  my love hate relationship A has an ongoing
> > problem that I am going to try and figure out now.
> >
> >    At idle,  it will not run smoothly without
> about
> > 1/2 choke.   I have been told that It could be a
> leak
> > around the manifold, so I checked that,  It's not.
>   I
> > have also been told to check the adjustment of the
> rod
> > from the govenor to the carb.  I played with that
> > yesturday and could make it a little better,  but
> not
> > cure it.
> >
> >    What else shoud I be looking for?  I just took
> that
> > carb apart and re-cleaned it.  I took my Ebay
> zinqer
> > magneto off and put a distributor on it.
> ("rebuilt"
> > Mag bought from trusted seller on Ebay,  5 hours
> > running time in 2 years.. bad bearings in the
> mag..
> > grrrr...It sure looks nice though..)
> >
> >          Thanks for the help!
> >
> >                Chris
> >
> >
> >
> > __________________________________
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