[AT] A Few Questions: Mufflers

[Ben Wagner]

I took the muffler off to take a look, and I can shine a light in at one
end.  Looking in from the other end, I see no baffles.  I take it this
muffler is the equivalent of straight pipe exhaust!  This old muffler was
made presumably with the tractor, since it is a Stanley.

I look up in the muffler, and I see little fingers about 1/2 inch long all
the way up.  Is this the way the Stanley mufflers were made, without
baffles?

Ben Wagner

On Tue, Jul 5, 2011 at 10:09 AM, Mike Sloane <mikesloane at verizon.net> wrote:

> I don't know much about Farmall A tractors, but there are muffler, and
> there are mufflers - some of the ones sold today are nothing but tin
> cans with pipes on both ends, while others have proper baffles that (if
> correctly arranged) do a pretty good job of quieting engine sound. If
> you have an OEM muffler that sounds loud, it may be that the baffles
> have simply eroded to nothing over the last 65 years.
>
> As far as the surging, that suggests attention needs to be paid to the
> governor.
>
> For the clutch adjustment and other similar issues, I always recommend
> that you go to Binder Books <www.binderbooks.com> and obtain a service
> manual for the tractor.
>
> Mike
>
> On 7/5/2011 9:52 AM, Ben Wagner wrote:
> > Hi everyone,
> >
> > I've got a few questions concerning my 1945 Farmall A.  I just started it
> up
> > for the first time in four months yesterday after a paint job.  I'll
> number
> > the questions so that they are easier to reference.
> >
> > 1.  The tractor runs fabulously.  It starts right up, even after sitting
> for
> > four months, and is the most dependable engine I could want in an old
> > tractor.  My only objection is that the engine surges whenever I adjust
> the
> > throttle, unless I slowly creep the throttle up or down.  The surging
> stops
> > if I slow the engine down.  My other tractor, the 1948 Super A, will also
> > surge but only when the choke is not adjusted at exactly 1/2 choke.  The
> > 1945 A will not run well unless the choke is completely open.  Because
> the
> > engine on the 1945 A runs so well, I hesitate to do any adjustments on
> the
> > carb.  Does anyone have any advice?  I can live with the surging, even
> > though it is a little irritating, but I would like to be able to advance
> the
> > throttle without the concern of the surging.
> >
> > 2.  I used the tractor this winter before a paint job for snow removal.
>  I
> > remember thinking that the engine sounded incredibly loud.  Yesterday, I
> had
> > both tractors out, and the 1945 engine sounds much louder than the 1948
> > Super A.  I'm wondering if the muffler is working, since the muffler is
> > original "Stanley" vintage.  Is there any way to clean the soot out of
> the
> > muffler, without taking it to a muffler shop?
> >
> > On the other hand, if the muffler is fine, which is something I may test
> > soon with my other tractor, what would make the engine sound like a two
> > cylinder?  It has a distinctive "putt-putt" versus the smoothness of the
> > Super A, although the Super A is not as good an engine.  Like I
> mentioned, I
> > really don't want to mess with the engine since it runs so well.  I'm
> > halfway wondering if the modern ethanol gasoline is part of the problem!
> > But then again, the muffler could not be working, causing me to hear the
> > pure engine firing.
> >
> > 3.  This question is for anyone who has adjusted, or knows how to adjust,
> a
> > Farmall A, B, or C series clutch.  The clutch only begins grabbing when
> the
> > pedal is about 1/2 to 1 inch from being completely up.  There is no
> > freeplay.  How can I adjust the clutch to give me a little freeplay and a
> > longer engagement travel?
> >
> > Thanks for your help.
> >
> > Ben Wagner
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