[AT] Easier to Start?

Ben Wagner supera1948 at gmail.com
Mon Jul 16 15:52:38 PDT 2012


Charlie, I'll try your suggestion, since you have always been right on.  
Either way, it won't hurt anything, and my arm will thank me!

Ben Wagner


On 7/16/2012 4:57 PM, charlie hill wrote:
> Ben,  If you're having to run with half choke you're either getting air from
> somewhere you shouldn't or not getting the fuel you need.
> The reason I told you to clean it again after you were sure it was clean is
> because I've been down that same road before.   It only takes an itty bitty
> little piece of whatever down in the passages of the carb to cause what you
> are experiencing.  The first time it happened to me a mechanic friend heard
> my tractor run and said "you've got trash in your carb"  I told him I had
> just cleaned it carefully.  He said " YOU'VE GOT TRASH IN YOUR CARB!"  I
> took his word for it and tore it back down.  I cleaned it again even more
> carefully and ran wire again into all the little passages.  I never saw a
> thing come out of it.  I put it back together and the tractor cranked and
> ran like a top.
>
> Check for vacuum leaks in the intake too.
>
> Charlie
>
> -----Original Message-----
> From: Ben Wagner
> Sent: Monday, July 16, 2012 8:50 AM
> To: at at lists.antique-tractor.com
> Subject: Re: [AT] Easier to Start?
>
> Hi Charlie,
>
> Thank you for your very detailed breakdown on cleaning my carb.  I
> actually hesitate to tear back into it, since I have taken it apart
> three times since the restoration in hopes of finding the elusive
> problem.  I have eliminated most recently:
>
> ~fuel flow
> ~clogged/constricted main jet
> ~trash around the float needle/seat
> ~trash in the passages
>
> If my carb is indeed clean, and assuming my air filter is working
> properly, what other problems might I have to cause the engine to only
> run on half choke?
>
> On another note, on my 1945 A, I have a "needle valve main jet
> adjustment" screw that allows me to adjust the mixture.  It screws into
> the main jet.  In the Super A parts book, the screw is listed, but it is
> listed as only available on kerosine/distillate engines. I'm assuming,
> then, that it is not needed for a gasoline engine, correct?
>
> Thanks to everyone for their help so far!
>
> Ben Wagner
>
>
> On 7/15/2012 11:55 PM, charlie hill wrote:
>> Oh and while you are at it take the fuel line off and blow carb cleaner
>> through it (assuming it still has the factor metal fuel lines on it) and
>> blow compressed air through it and repeat until you're sure there is no
>> trash, rust, scale or gunk in it.  Check your sediment bowl strainer and
>> make sure it is right and clean.  If someone has put an inline fuel filter
>> on it take it off that might well be part or all of your problem.  Most of
>> the inline fuel filters you see are designed for a pressurized system and
>> don't gravity flow enough fuel to feed the carb on an updraft system.
>>
>> Charlie
>>
>> -----Original Message-----
>> From: Ben Wagner
>> Sent: Sunday, July 15, 2012 9:03 PM
>> To: Antique tractor email discussion group ; Farmall/IHC mailing list
>> Subject: [AT] Easier to Start?
>>
>> Good Evening,
>>
>> It's been awhile since I have had to bring you an issue on my Farmall
>> Super A.  It has always been hard to start, taking a long time of
>> cranking (normally two periods of three seconds each) before it will
>> begin to fire.  Lately, the electrical system has acted up, and I am
>> trying to start it with a hand crank.  It's great exercise, but not the
>> greatest use of my time.  It took a good 20 some turns with the hand
>> crank to get it to start firing tonight.  I'm surprised my arm can still
>> type!
>>
>> Is there any sort of "trick" some of you know of to convince a tractor
>> to start easier with a hand crank?
>>
>> In case it is important, the Super A has a good magneto, D21 spark
>> plugs, and a Zenith carb.  It also only runs well on half choke, and
>> there are no adjustments on the Zenith beyond the idle mixture.  I know
>> the impulse coupling works, unless I am mistaken.
>>
>> Thanks for your help.  I'm sure all of you have had the tractor that
>> won't start well with a hand crank!
>>
>> Ben Wagner
>> _______________________________________________
>> AT mailing list
>> http://www.antique-tractor.com/mailman/listinfo/at
>>
>> _______________________________________________
>> AT mailing list
>> http://www.antique-tractor.com/mailman/listinfo/at
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at





More information about the AT mailing list