[AJD] 1950 A surging at idle

[Dee Schuyler]

Chris make sure you find all the passages there is one that I think Robert 
refers to as the hidden one in the nozzle area that most everybody misses?
Not sure if your carb has that one or not? But it is a possibility it  was 
missed . Another possibility would be govenor slop, not in the linkage as 
you checked that , but inside, where it can get expensive! YMMV
Dee
----- Original Message ----- 
From: "Chris C" <jdnutinwa at yahoo.com>
To: "Antique John Deere mailing list" 
<antique-johndeere at lists.antique-tractor.com>
Sent: Tuesday, January 04, 2005 8:06 AM
Subject: RE: [AJD] 1950 A surging at idle


> Lou,
>
>    Thanks for the info.  I think  I am going to order
> up a set of drill bits and tear the whole thing down
> again and do it over.   I have not checked to see how
> the throttle disc fits,  so I will be sure to look at
> that.   It has all new throttle and choke shafts and
> bushings.
>
>     I'm pretty sure that it is acting up as I am
> considering putting more money into it i.e. new rear
> tires and maybe some paint..  SInce this was my
> grandfather's tractor,  it knows it can do nothing but
> cost me money and I won't sell it.   The other 4 A's
> have been getting more attention lately..
>
>     I'm going to take it out and pull some logs out
> with it today.  I'll let it pull a few past my AC
> dozer and see if that cheer's it up...
>
>                   Chris
> --- Louis <louis at kellnet.com> wrote:
>
>> 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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