[AT] Magneto?/Dist.

[Snelling, Wayne K]

I have a magneto/distri. question: My Dad has a Farmall "B" and it started running on only two cyl. I checked closely the cap but could not see any cracks or indication of a crack. However, when I replaced it with one from an "A" all four cyl ran perfectly. Only thing I could see was the carbon center (cap) was wore so much it may have not had good contact with the rotor? Could that cause a constant miss on the same two cyl?

________________________________

From: at-bounces at lists.antique-tractor.com on behalf of Charlie V
Sent: Mon 6/11/2012 7:37 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Magneto?



Wow!  Good man, Tyler.  Boy, do I like your A.  The spark from your
mag can be tested simply with a piece of bare copper wire with one end
in first one plug wire socket, then the other socket.  The other end
of the wire would terminate about 1/8 inch from any point on the metal
outer body of the mag.  The spark should jump a gap up to 1/4 inch,
but I am usually happy if it jumps 1/8 to 5/32 inch as long as it is a
hot blue spark each time the impulse is flipped over for that
cylinder.  Obviously you will need to draft a helper to perform this
test for you.

Good Luck,

Charlie V.

On Mon, Jun 11, 2012 at 6:24 PM, Tyler Juranek <tylerpolkaman at gmail.com> wrote:
> Hi all,
> Thank you for the info.
> By the way, George, I know you said that you found a mag tester and
> that it let you know how much spark you had by lighting up.
> Since you can't see anyone in an email, I have to just say that that
> method won't work for me.
> The reason being?
> I am completely blind, but two cylinder tractors have been my hobby
> for a long time now.
> Yes, I can drive them, I just have someone walk behind me and tell me
> witch way to turn.
> It is a fun thing for me, and I wish I could spend all day out there,
> all by myself driving.
> The model A that I asked you folks about on here was my Great
> Grandfather's tractor. He bought it brand new in 1936, and the fenders
> I have on it are the original fenders he bought with it.
> Also, if you folks want to see me driving that model A, you may go to
> http://www.youtube.com/watch?v=n1IrT1BqZuQ&feature=plcp
> Thanks for the replies, feel free to post more ideas.
> Regards,
> Tyler Juranek
>
> On 6/11/12, Dave Rotigel <rotigel at me.com> wrote:
>> As you know Paul I used to use the retarded kid next door to test my mags.
>> It was a SAD DAY when he moved away. Now I have to find new kids and
>> typically they can be used only once!
>>       Dave
>>
>> On Jun 11, 2012, at 5:21 PM, Paul Waugh wrote:
>>
>>> Grab a hold and hang on while someone gives it a spin. If your feet stay
>>> on
>>> the ground, then probably not enough spark to start, 2 in off ground,
>>> maybe,
>>> 4 in yes, and more than that, you have a hot one.   Just could not help
>>> myself
>>> Paul
>>>
>>> -----Original Message-----
>>> From: at-bounces at lists.antique-tractor.com
>>> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Tyler Juranek
>>> Sent: Monday, June 11, 2012 12:30 PM
>>> To: antique-johndeere at lists.antique-tractor.com; Antique tractor email
>>> discussion group
>>> Subject: [AT] Magneto?
>>>
>>> Hi everybody,
>>> On any 2 cylinder John Deere that is a hand start, what is the best way
>>> to
>>> test the magnetic field in the magneto?
>>> If it makes more sense, I'm just wondering how to test the mag to find
>>> out
>>> how much spark it has.
>>> Any help will be most appreciated!
>>> Thank you,
>>> Tyler
>>>
>>> --
>>> Check out my youtube channel, and spread the word!
>>> http://www.youtube.com/tylerthetechy/
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>
> --
> Check out my youtube channel, and spread the word!
> http://www.youtube.com/tylerthetechy/
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