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Farmall & IHC Tractors Discussion Board |
Re: Farmall B cooling system - Pressurized or not
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Posted by Hugh MacKay on July 07, 2006 at 19:06:08 from (216.208.58.110):
In Reply to: Re: Farmall B cooling system - Pressurized or not posted by old on July 07, 2006 at 18:05:00:
old: Some of the last thermosyphon cooling systems were presurized. Super A was the only model done from factory and started at serial number 336711, being sometime in early 1953. My Super A came not long after being serial number 336977. We had this discussion some time ago, I knew my tractor had been presurized since new. Some folks claimed none of thermosyphon systems were presurized, and finally Sam in NS found the stats on the Super A and the exact serial number at time of change. There was a change in the block at serial number 310300, not sure what affect that had on coolant chamber. Billy's B would have been non-presurized from the factory. It's unlikely anyone changed it as the presurized and non-presurized radiators are different. It may be that blocks before serial number 310300, can not be presurized. That rings a bell, if someone who knows for sure would care to comment.
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