Re: Ford didn't build a bigger tractor - why not ?

Posted by Dan on November 30, 2005 at 06:22:20 from (66.15.112.136):

In Reply to: Re: Ford didn't build a bigger tractor - why not ? posted by Bill(Wis) on November 29, 2005 at 17:41:27:

Bill - the N Series tractors had the thin .040" steel sleeves in them from day one when the first 9N rolled off the assembly line in 1939 and all the way through the 2N and early 8N tractors as well. These thin steel sleeves worked just fine and would not destruct in one season as you say - they would last many years. While they did go to a thick .090" cast iron sleeve in 1951 mid production on the 8N tractor, it was not because of a problem with the design of the thin steel sleeves, but because you could bore it out to keep you from HAVING to replace the sleeves every time you did an overhaul (which was much harder for the farmer to do himself). In reality, the 119 ci flathead four the N Series used did not get an increase in power from the thin sleeves as you state, and actually had more power by the time they got the thicker sleeves (even though that was not what caused this increase in power). While they did bore the block bigger to accept the thicker sleeves, the inside diameter of the sleeve did not change nor did the piston size. The jump in compression between the 9N/2N tractors and the 8N was not due to the sleeve changes.

HTH,
Dan

Replies:

• Re: Ford didn't build a bigger tractor - why not ? Bill(Wis) 08:25:57 11/30/05 (0)

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