[AJD] Test-my thoughts

[Bill Maki]

James,

I don't have anything with a pony motor so I don't know how they work
but I assume it has points and a condenser in the distributor.  I have
found that weak spark when there is spark usually means dirty points and
sometimes a bad condenser.  I have had good luck going from gas dripping
out of the exhaust to a smooth running two cylinder by cleaning the
contact surface of the points with some sandpaper.  I just fold it (150
grit or so) over so it has the sandy surface facing outward on both
sides, slip it between the contact surfaces of the points and polish
them up.  I think you can buy a thin file that does the same thing and
has no risk of dropping sand grains into your distributor.  My two
cylinder sits for months at a time between being run and corrosion often
starts on the electrical contact surface of the points causing poor
electrical transmission.  Sometimes I can't tell the corrosion is there.
The points look fine.  I may be totally off base and sending you on a
wild goose chase but it has solved starting problems for me in the past.
Good luck.

Bill Maki
Waynesboro VA

-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
Of James Showers
Sent: Saturday, July 01, 2006 8:22 PM
To: Antique John Deere mailing list
Subject: Re: [AJD] Test-my thoughts

John,
Any help would be great.  At the timing marks, when I move the
distributer, 
I do not get any spark.  What spark there is has turned to a weak yellow

when it was blue.  When the engine was apart, I did not remove the 
crankshaft or camshaft, so the timing in that respect should be OK.
Jim




----- Original Message ----- 
From: "John D. Swecker" <johnnyd at mountain.net>
To: "Antique John Deere mailing list" 
<antique-johndeere at lists.antique-tractor.com>
Sent: Thursday, June 29, 2006 5:34 PM
Subject: Re: [AJD] Test-my thoughts


> Jim Showers;  I think I may be able to help you with your pony engine 
> problem. Let me know.  John Swecker
>
> James Showers wrote:
>
>> I have a 720D that is that way....I've been trying for 3 years to get
the 
>> pony to start.  I just got a new carb from Roberts, and still the
same 
>> symptoms.  It fires on the starter, but will not run.  Previously it
ate 
>> 2 throttle plate screws.  I did a valve job and one piston and new
rings. 
>> Timing was not changed and it has good spark with new plugs.  I have 
>> already invested enough to have converted the tractor to electric
start.
>> Jim Showers
>>
>>
>>
>> ----- Original Message ----- From: "wwwayne johnson" 
>> <wjohnson at bigriver.net>
>> To: "Antique John Deere mailing list" 
>> <antique-johndeere at lists.antique-tractor.com>
>> Sent: Saturday, June 17, 2006 10:09 PM
>> Subject: Re: [AJD] Test-my thoughts
>>
>>
>>> Busy is right.  Got that 730D in the shop  that has set inanother
shop 
>>> for 9 years, partly assembled.  Turned out it needed a new radiator,
new 
>>> rings, new crank and brgns and 5 gears in the tranny and new ring
gear. 
>>> When I get done I'll give a good rundown but I've already used up
all 
>>> the adjectives Greg supplied and on a good list of my own.
>>> Merle Wayne
>>> ----- Original Message ----- From: "Gordon Halley"
<ghalley at wowway.com>
>>> To: "Antique John Deere mailing list" 
>>> <antique-johndeere at lists.antique-tractor.com>
>>> Sent: Saturday, June 17, 2006 8:08 PM
>>> Subject: Re: [AJD] Test-my thoughts
>>>
>>>
>>>> This goes for me, too. It's too bad people's feeling have to hurt 
>>>> others.
>>>>
>>>> Gordon.
>>>> _______________________________________________
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>>>>
>>>
>>>
>>>
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>>
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>>
>
>
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