F12 14 engines

teddy52food · Oct 2, 2009

What are the differences between the F12 and F14 engines? I think the F14 is goverened to run faster. Was that done with a heavier spring or lighter flyweights?

rustred · Oct 2, 2009

same engines, just the 14 run faster.

John M · Oct 3, 2009

One difference is the valve cover breather on the 14, which is secured on the side of the block on a 14 by a bolt. The 12 engine wont have this hole. Other than the obvios internal differences, pistons,etc. they are pretty much the same.

cornfarmer · Oct 3, 2009

Lots of internal differences even in the various F-12 series IH engines built over the years. The 1936 F-12 engines were much improved from earlier years. As for the changes for the F-14, I think even the oil pump and cylinder heads are different, at least they are between the W-12 and W-14 according to the factory casting numbers. Are you wanting to mix and match parts, or just swap complete engines? IH made lots of running changes over the years-a parts catalog will sort it out for you. The governors were different part numbers, and the springs were different. I do not know what would happen (or even if it would work) if you tried using later springs in an earlier governor.

teddy52food · Oct 3, 2009

Someone is looking for an engine for his F14 & I have a rebuildable F12. Looks like it would work.

Bill(Wis) · Oct 3, 2009

The very first F-12s had Waukesha engines. Also, there were 2848 F-12s made in Germany. Otherwise the two models used a 113 cu in IH egine with the F-12 running at a rated RPM of 1400 and the F-14 at 1650. I personally wouldn't worry about it. Slap that F-12 engine in and who cares if it has 1 or 2 HP less?

F12 14 engines

teddy52food

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rustred

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John M

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cornfarmer

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teddy52food

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Bill(Wis)

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