[AT] Tractor Question - 420 JD

[Paul Waugh]

OK, one thing I have learned about this list is pay attention.  I have never 
had the tank off. I feel that I have a good flow and get very little 
sediment in the bowl. BUT, because of several replies, I will pull the tank. 
First I will try the LP gas trick.
OH, the first thing is pull it up a good hill, winch in onto the trailer, 
and bring it home. Right now it is sitting in a 3 acre bottom ground that 
has not been touched for years, mainly because of the hill.  This land, my 
son just bought, no electric, nothing but a good hay field, and more than 
several walnut trees, 12-24 in in diameter.

Paul in IN

----- Original Message ----- 
From: "charlie hill" <chill8 at suddenlink.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Friday, August 08, 2008 5:21 PM
Subject: Re: [AT] Tractor Question - 420 JD


> Paul are you sure you don't have fuel supply problems?  You need to check
> your tank and fuel lines carefully.  Sometimes a piece of debris will hang
> around the tank outlet.  The fuel flow will pull it down over the opening.
> When you stop for a while it will float free.
>
> Good luck.  Those sorts of problems can run a guy crazy.
>
> Charlie
> ----- Original Message ----- 
> From: "Paul Waugh" <pwaugh at embarqmail.com>
> To: "Antique tractor email discussion group" 
> <at at lists.antique-tractor.com>
> Sent: Friday, August 08, 2008 2:42 PM
> Subject: Re: [AT] Tractor Question - 420 JD
>
>
>>I just got back from trying my "cleaning' ... no different, run 3-4 sec
>>then
>> quit.  I had heard of the WD-40 method, but I will try the LP gas method
>> ...
>> as soon as I get it drug up from the bottom of a hill to up under a shade
>> tree, and can charge battery or jump battery hahaha
>>
>> Thanks a bunch for ideas and help
>>
>> Paul in IN
>> ----- Original Message ----- 
>> From: "Mike Sloane" <mikesloane at verizon.net>
>> To: "Antique tractor email discussion group"
>> <at at lists.antique-tractor.com>
>> Sent: Friday, August 08, 2008 6:54 AM
>> Subject: Re: [AT] Tractor Question - 420 JD
>>
>>
>>> Instead of WD-40, these days I use an unlit propane torch with the valve
>>> cracked open. That way you can direct the propane right at the various
>>> points around the manifold and the carburetor. In addition to warping,
>>> look for pinholes in the casting and gaskets that aren't sealed
>>> completely. You need to cover the entire area of the intake from the
>>> head to the carburetor, including the throttle shaft itself. A worn
>>> throttle shaft/bushings will allow air to get past and cause a lean
>>> mixture.
>>>
>>> Mike
>>>
>>> Lew Best wrote:
>>>> Don't know if it'll still work as I'm told that WD40 has been
>>>> re-formulated but in the old days you could spray it around the 
>>>> manifold
>>>> contact places, etc. with an engine running & any vacuum leak would 
>>>> make
>>>> an engine speed up quite noticeably.  Ether starting fluid should do 
>>>> the
>>>> same but would have to be kept plenty far from the carb intake to avoid
>>>> a "false alarm."
>>>>
>>>> Lew
>>>>
>>>>
>>>> -----Original Message-----
>>>>
>>>> Thanks for the replies.  It is good to know that at least it is the
>>>> right
>>>> one.  I have cleaned with carb cleaner and blown out several times over
>>>> the
>>>> 15 years I have owned it.. I took it to the place that Dennis Polk 
>>>> uses,
>>>> and
>>>> had it boiled and new jets, still same thing.  I had heard of the place
>>>> in
>>>> IA and was thinking of trying them.  About a vacuum leak, I did a ring
>>>> job 2
>>>> years ago, and used all new gaskets, so it should not be leaking air. I
>>>> did
>>>> use the same manifold, so if it is wrapped, then I would have the same
>>>> problem.
>>>>
>>>> I will keep plugging away, thanks again
>>>>
>>>>
>>>>
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>>>>
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