[Farmall] F-20 tires

Tue Nov 16 05:47:50 PST 2004

I've never seen 40" or 42" on an F-20.  I do believe
that 40" was the standard size on F-12 and F-14.  36"
is common on F-20s because it took that size to clear
the brake housings allowing you th move the wheels
inward.  I'm pretty sure that the factory rubber size
was 36"  I've also seen a lot of 24" and 28" cutoffs. 
The 24" size is probably good on an F-20 because their
overal height would be pretty close to the original
40" steel.  I have 36" w tall tires on my F-20 and
fond the tall tire to be a bit of a disadvantage when
I want to pull something.  This tractor goes as fast
in 1st gear as others go in 2nd.  Sometimes we see
some odd sizes.  I really think that a major factor in
deciding what size to use was what they had on hand or
easily available.  Many modifications are done in a
way that seems strange to someone years later.  The
answer to "why did they do it like that?" is likely
"beacuse that's what they had" when they needed to
"fix" something.  Look around you own place and you
will see a few examples.
--- Bob Currie <tractors at foothill.net> wrote:

> The applications I have seen here in northern
> California were obviously set 
> up for high clearance work but I don't know what
> kind of crop. There were 
> many IH, JD, and Case high crops used in this 
> general area. Some factory, 
> but many home made. On the Farmalls I saw, my guess
> is they were all done 
> locally and in both cases, they had wide front axles
> with the original 
> hubs, but had been adapted for pneumatic rims with
> 600 X 16 tires on one, 
> and 650 X 16's on the other. And then the larger F&H
> wheels on the rear. 
> The F-20 was originally an "NW", but not a cane
> tractor.  The 42 inchers 
> were a great surprise to me. Same scenario but on an
> F-30 tractor. I don't 
> remember the rear tire size, and I understand the
> tractor has sense gone up 
> to live in the central Oregon area. Last year we
> found an F-12 with 40" 
> round spoke rears, and sporting a Farmall "H" wide
> front  with 16" tires.
> 
> bobcurrie,
> 
> At 06:18 PM 11/14/04, you wrote:
> >Bob,
> >What were the 40 and 42's used for? I just saw a
> photograph of my 
> >Grandpa's Farmall Regular circa 1952 or so, looks
> like he had some big 
> >rubber on-  might have been 38s, but on a Regular
> they looked huge on 
> >those F&H round spokes.
> >
> >Bob Currie wrote:
> >
> >>Tony,
> >>The F-20's use various sizes of those F & H round 
> spoke wheels like you 
> >>have on your 37 model. The most common ones I've
> seen are 24", 28", 
> >>36",  38". I've seen 40's and 42", but not very
> often, and they were 
> >>mostly used on special applications. The 24" and
> 28" wheels are mounted 
> >>with the hub turned around so the wheel sticks 
> out further and doesn't 
> >>hit the brake pod.  If you used 36" or 38", the
> wheel could be mounted in 
> >>the more conventional method, and you'd see the
> overall width of the 
> >>tractor would be about seven or eight inches
> narrower.  They offer those 
> >>different tire sizes so you can pick a size that
> will fit your needs, and 
> >>also to keep the tractor sitting level. Usually,
> the smaller the diameter 
> >>of your wheel, the bigger or taller or fatter the
> tire. I don't 
> >>necessarily agree that the BF Goodrichs look the
> best, and I would 
> >>suggest that you go have a look around, whether on
> the internet or in 
> >>person, at other F-20's to compare what you see. I
> say all this because 
> >>your rear wheels and tires are (1) a very
> expensive part of the 
> >>restoration, and (2) they can make or break the
> overall look of your 
> >>finished tractor.
> >>
> >>>bobcurrie,
> >>
> >>Greenwood, CA
> >>
> >>>All,
> >>>
> >>>I am getting ready to buy new tires for my F-20.
> The tires that are on 
> >>>it are 12.75 x 24. Miler Tire told me on the
> phone that this converts to 
> >>>16.9 x 24. Is this right?
> >>>
> >>>Their site also says that the BF Goodrich tires
> look the best on the old 
> >>>style rims, but the closest size of BF"s that
> they have is 14.9x24. Any 
> >>>recommendations?
> >>>
>
>>>http://www.oldengine.org/members/pitts/mbf/F20NRestoration.htm
> >>>
> >>>The link shows pictures of he tractor.
> >>>
> >>>I am on the digest so please include me on any
> replies 
> >>>(mgomaize at netzero.com)
> >>>
> >>>Thanks,
> >>>
> >>>Tony
> >>>
> >>>
> >>>
> >>>
> >>>------------------------------------------
> >>>Tony Pitts
> >>>Ann Arbor, MI
> >>>http://www.oldengine.org/members/pitts/mbf
> >>>_______________________________________________
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>
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> >>
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> >>
> >
> >
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=====
Andy Glines
Evansville, IN

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