[AT] 430V update

[Stephen Offiler]

Spencer, a thought about the carb.  You might have already considered this,
but I'll mention it anyway.  Worn butterfly shafts and bushings will create
oddities at idle, such as hunting.  You have a double-whammy of a slightly
indeterminate butterfly position plus a potential vacuum leak.

SO


On Fri, Nov 17, 2017 at 11:36 PM, Spencer Yost <yostsw at atis.net> wrote:

> I tried several things to find the vacuum leak, and the problem is either
> not a vacuum leak, or is just so insidious that propane and WD-40 just
> simply isn't going to find it. Considering manifold gaskets are super easy
> to replace and cheap, I just ordered a replacement gasket(carb and
> manifold) from John Deere(price was competitive).  At least I can rule out
> the gaskets after I deck/file the manifold and replace the gaskets.
>
> I am beginning to suspect the Carb. I didn't have a hunt at idle for the
> first little bit that I ran the engine. But the throttle also wasn't
> working so I never got a true idle so I assumed the hunt was real and the
> lack of throttle control hid it.  Plus I am not getting the response from
> adjustments that I would expect.
>
> Also, I am pretty sure the carburetor is a MS TSX 541. The parts catalog
> indicates  I should have a 641. I need to pull the carb  when I do the
> manifold and double check the number. (Of course the tag is facing the
> engine so I can't see it).  Does anyone know if the 641s were a definite
> for this tractor? The 541s were common on Ford's, so I'm afraid the carb is
> been replaced sometime in the past. If that's the case that might explain
> my hunt.
>
> I got the serial number research from the two cylinder club today. Here's
> a picture of the document they sent me. The tractor survives as it was
> shipped a except the "dry charge" battery of course (-:  Everything
> mentioned is still the same and the tail light even still works(did have to
> clean up the ground).
>
> An interesting sidenote: the finish date is my wife's birthday(it is a few
> years older). I thought that would earn a few points for the tractor, but I
> don't think it did :-)
>
>
>
>
>
>
> Spencer Yost
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