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Fordson Tractors Discussion Forum

Fordson F puller any suggestions?

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CASEPOWER

07-23-2004 17:34:20

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I am in the process of building a Fordson F puller. This is being built from junk parts and not a complete tractor. It will be featured step by step in "Old Power Pride Magazine" throughout the fall, winter, and spring. We are stroking the crankshaft 1" and will be going with a 4-1/2 bore for a total of 340 cubic inches. I have spoken to Marlo Remme, a long time Fordson collector, that used to pull a Fordson F in stock class. He has given me some great advice and "The Fordson House" has given me some great prices on some parts like "a rusted out gas tank" (no need to ruin a nice one). They have also priced me a dash panel with warn steering gears. (We will be using a rack and pinion). I was lucky enough to pick up a set of the 3/16" oversize valves from e-bay. We will be drilling the crankshaft for force feed lubrication, using jeep rods, and chevy 427 truck pistons. We plan to run 2nd gear at 2450 rpm's with 15.5x38" rubber at aprox. 8 mph. I would love to hear some opinions or suggestions. Please no bashing though! You would have to see what we are starting with to appreciate what were doing.

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ADAM

07-23-2004 20:08:55

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Re: Fordson F puller any suggestions? in reply to CASEPOWER, 07-23-2004 17:34:20

sounds like fun! my self i would use an english block and crank, bore is already 4 1/8 and the cranks are steel. boring a F block out to 4 1/2 is questionable perhaps impossible, the most i take them out is 4 1/8. the flywheel may or may not take those kinds of rev's. in stock form they redlined at 1000 rpm. the main bearings will need special attention,would be smart to repour them with a tin based high speed babbit.

might want to check out a hammelton aftermarket transmission, they offer a ring and pinion final drive versus the fordson worm type, ring and pinion that eats up less power.

i have pulled with fordsons some and have found that in the stock weight class they have plenty of power with a stock engine, weight gets to be a concern (not enough)

good luck with your project!

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CASEPOWER

07-24-2004 07:11:00

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Re: Re: Fordson F puller any suggestions? in reply to ADAM, 07-23-2004 20:08:55

I will be using a N flywheel. We will also be lightning it along with having everything balanced. I will be running the tractor very light, and hope to get in 2700# when finished. I was told the early cranks were steel. Also the block will first be sonic checked for cylinder wall thickness, then if there thick enough, it will be hard blocked 1/2 to 3/4 way to strengthen the walls. I would use a later block if I could find one.. I will also check with a few folks about the mains. The caps will be piped for oil and the crank drilled to get oil to the rods, but I am not sure of the original quality of henry's babbit..

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Butch H

07-24-2004 19:43:25

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Re: Re: Re: Fordson F puller any suggestions? in reply to CASEPOWER, 07-24-2004 07:11:00

Thats quite an ambitious plan. I pull with a 1925 f which does quite well in the 3000# class. The only problem with it is getting traction. I always loose traction before the engine bogs. Mine is bored with english pistons, gas manifold, high compression head, sidewinder bosch mag, F&H wheels on rubber with F&H weights to bring it around 2950#. No wheel brakes to play with but suprisingly the worm puts it out quite evenly. A note: this tractor's front wheels NEVER come off the ground! If your doing all of that expensive machining why don't you install insert bearings?

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CASEPOWER

07-24-2004 21:19:54

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Re: Re: Re: Re: Fordson F puller any suggestions? in reply to Butch H, 07-24-2004 19:43:25

The journals are wider then any insert I have seen. I have ran babbit up to 9 to 1 compression in a Case without any problems. The reason I will need more power, is the fact that I will be running 2nd gear at around 8 or more mph, plus I will be running full cut tires, which hook much better then non-cuts. I don't see the babbit being a problem on the mains and will be running inserts in the jeep rods. My worry right now is getting the rods to clear the block at the bottom of the cylinders. The extra 1" stroke with only a extra 1/4 bore is not to good. I really need to go with a bigger bore. We had planned to go 4-1/2 using sleeves, but it would be hard to hold the block together. I would also have to move the two center cylinders closer together. I am not sure if you know it, but the two front cylinders and the back two cylinders are Siamesed together, and there is no water passage between them. I have also checked the cylinder walls on a cracked block I have and they are from 1/4 to 5/16" thick. But a different block may vary because of electrolysis and rust pits. I may try to hunt up a Irish or English block, but don't think I can find one in these parts.

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Butch H

07-25-2004 18:28:33

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Re: Re: Re: Re: Re: Fordson F puller any suggestio in reply to CASEPOWER, 07-24-2004 21:19:54

Hey Casepower, did you buy those Fordson oversized valves on e-bay? Just curious! I've got an English parts tractor down in back of the barn. Stuck fast but has a good block as far as I can tell. Where are you located?

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CASEPOWER

07-25-2004 18:54:04

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Re: Re: Re: Re: Re: Re: Fordson F puller any sugge in reply to Butch H, 07-25-2004 18:28:33

Yea, I won the second set. The first ones went cheaper, but I bid twice as high as I paid for the set I won. I have built other pullers, but after checking the valve length of a Fordson, I figured I would have $300 in a custom set. Matching a set of automotive valves wouldn't work for the length. I am in NC. Were are you??

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Butch H

07-26-2004 15:56:07

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Re: Re: Re: Re: Re: Re: Re: Fordson F puller any s in reply to CASEPOWER, 07-25-2004 18:54:04

Probably should continue with e-mail. I sent you my adress.

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CASEPOWER

07-26-2004 16:22:40

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Re: Re: Re: Re: Re: Re: Re: Re: Fordson F puller a in reply to Butch H, 07-26-2004 15:56:07

Thanks, got it.

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