[AT] 8N Ford

[charliehill]

Steve, that high gear was plenty fast when the old F-20 had steel wheels on 
it!

Charlie
----- Original Message ----- 
From: "Steve W." <falcon at telenet.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Tuesday, December 22, 2009 5:28 PM
Subject: Re: [AT] 8N Ford


> drupert at seanet.com wrote:
>>> Since I am still trying to stay off of my #$%& knee I am going to go
>>> look at an 8N Ford Tuesday. Not been ran in a "couple of years". Has
>>> very good rear rubber, Sherman hi-lo, pictures look pretty good, looks
>>> like good old TSC super fading paint. Would not start, not stuck.
>>> -
>>> As I look at 9/2/8N's I have been struck by just how many of them have
>>> the Sherman's in them. Most are just the step-up's especially in the
>>> 9N's. I've seen mostly Hupps in the Fergies around here.
>>> It is also amazing just how many of the N's have a mangled grill.
>>> Maybe their brakes were not kept up good enough. :-)
>>> I have seen a whole herd of F-20's with "road gears" Behlen I think.
>>> Are there many other tractors where aftermarket overdrives were used?
>>> I have often seen M&W gear sets for Farmall M series but they were to
>>> improve 3rd and 4th gear but didn't change 5th.
>>>
>>> I don't know anything about the Behlen overdrive for the F series but I
>> know Heisler made them.  They made two overdrives for the F-12 and two
>> for the F-14.  One offering had a 2.1 to 1 ratio and the other a 2.32 to
>> 1.
>>
>> They made three overdrives for the F-20, three for the Regular and one 
>> for
>> the F-30.  For the Regular and F-20, one Overdrive offering had a 1.99 to
>> 1 ratio, one had a 2.1 to 1 ratio and one had a 2.32 to 1 ratio.  The 
>> F-30
>> Overdrive had the 1.99 to 1 ratio.
>>
>> The Data Book I have lists 4th Gear for the F-20 at 3.75 MPH ... I guess
>> even with the fastest overdrive this means the top speed was barely eight
>> and a half  MPH (probably want to have rubber tires for that).
>>
>> Heisler also made the 9-speed gear set for the H & M.  As with the M&W
>> these gear sets offered four additional gears between the "standard" 4th
>> and 5th gears.  This was accomplished by installing an overdrive on the
>> Counter Rotating Shaft.  The overdrive ratio was appropxiamately 2 to 1.
>> Thus, when out of overdrive, the output of the first four gears was
>> unchanged but when in overdrive their output was a hair more than doubled
>> -for an M this meant the additional speeds of approxiametely 6, 7.5, 9 
>> and
>> 11 MPH.
>>
>> Dudley
>> Snohomish, Washington>
>>> --
>>
>
> The F-20 we have NEEDS an ad-on gear or 5. I have driven it up to the
> farm from my fathers to the old farm (about 10miles) With the "high"
> gear it has in it that is ONE LONG TRIP....
>
> In high gear you can get off and jog around it without a problem. The
> only saving grace was that it had a wooden platform made across the
> drawbar so you didn't have to stay in the seat the entire way.
>
> -- 
> Steve W.
>
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