F-12 to f-14 conversion

What parts were included in the field conversion package part # 42616D to change a f-12 to a f-14 ?Thank-you

Phil, Not sure about that part # But I no there where brake handles and streering shaft and post.
I beleive seat height changed. oldiron29

I have a F-12 that I've been told had the dealer conversion kit. Higher seat, longer brake levers, crankcase breather on valve cover, raised steering. I have yet to start tearing it down but I'm assuming it has the F-14 govenor. It does have an F-14 head.

I've wondered if they changed any of the gears. Talking with my grandfather before he passed and some local guys that helped my grandfather farm when they were younger always thought this tractor moved pretty fast compared to any "stock" F-12s.

If that part # is for a conversion kit, doesn't it list what is in it? I know the engine speed was adjusted up by 200 RPM which gained about 2 HP, the PTO drive gear in the transmission was changed to retain the original shaft speed, the steering shaft was raised and a universal joint was installed next to the front pedestal, the seat was raised by installing a taller post and a different spring, and longer brake handles were installed due to the increase in the height of the seat. I'm not sure if the valve cover was changed as a part of the conversion or not. The F-12 used a restricted street el fitting with a piece of pipe on the front of the engine block as a crankcase breather. The F-14's use a different valve cover with a factory breather tube that extends down behind the magneto. The F-14 block has a pipe plug installed in place of the restricter fitting. Hope this helps.

The bevel gears from the input shaft to the belt pulley shaft in the gear-box changed to accommodate the change from 1400 rpm of the F-12 to the 1650 rpm of the F-14 so that the change in engine speed did not alter the speed of the tractor or belt pulley. The gears to the power take off also changed from a 2.6 to 1 to a 3 to 1 ratio to give 550 rpm versus the old 540 rpm. The pto gears were also the oiler gears for the gear-box.

I have one of those F12's with the conversion. Just reading over the other comments it looks like they have covered everything that I know of that was done.

Sure wish I had the one in the pictures above !

How much do you wana give me Doug?!!?

My plan...(long term plan) is to restore that tractor along with another true F-14 that I bought. I've got a Heisler gear box for the 14 and along with some other custom work to it I think I'll get it to run fast enough to cruise with. I might leave the 12 on steel and just use it at shows. Maybe buy some rubber lugs and drive it in some parades.
I really need to get the 12 drug in the shop and tear into it some. It's been outside behind one of our old hog buildings for 30 years or more so another year or two won't hurt it any more I guess. It's got a custom wide front on it. I have the original narrow front. I haven't desided if I'll restore the wide or not. None of it is welded to the tractor...only bolted so it would swipe out easily.
When I get it done I would like to have some custom decals made up that say "F-12/14"....get some rumors started that is was a rare prototype they put out for testing to see if it was worth doing an upgrade to the 14!!!!
The 12 is a '37 model and the 14 I have is an early '38. I think it will be neat having both of them complete and running.

There was another change. The F-12 distillate/kerosene tractors had the gasoline starting tank inset in the back of the main fuel tank and had a small chamber set in the rear of the hood to feed the carburetor, The overflow went back to the pump inlet pipe as it could not go back to the fuel tank as it carried gasoline for starting or distillate/kerosene when running. In the F-14, they used the W-12 starting arrangements where the gasoline tank was set in the hood supplying the carburetor by gravity alone. The fuel pump only pumped the distillate or kerosene and so the overflow that the carburetor did not want went straight back to the tank and the small chamber sticking up out of the back of the hood was no longer there.