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Can Anybody Identify These Pistons?

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Red Dave

09-30-2004 05:07:57

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These are in a Farmall B. I know they are not original.
Who made them? IH, or are they aftermarket?

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mbnok

09-30-2004 17:59:28

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Re: Can Anybody Identify These Pistons? in reply to Red Dave, 09-30-2004 05:07:57

I put a set in Dads B (which I now have) back in the "sixties" Have since put new rings in on same pistons. They were called step head pistons. With an eighth inch overbore and increased compression it had very noticable more power. if your cooling system is somewhat clean it won't overheat until you pull it to hard. steadily under 7 to eight inches vacuum. The overhaul set came from Tractor Supply of Des Moines (sp) Iowa. I think it went out in the late seventies, seem to to me it might have been replaced by CT farm, I don't know. In the fifties and sixties the parts were about half what you would pay at standard auto or IH

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Stuart

09-30-2004 09:45:35

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Re: Can Anybody Identify These Pistons? in reply to Red Dave, 09-30-2004 05:07:57

They could be a central tractor(CT) brand piston. Does the tractor seem to have a lot of power? could be the reason its overheating.

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Red Dave

09-30-2004 10:38:45

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Re: Can Anybody Identify These Pistons? in reply to Stuart, 09-30-2004 09:45:35

No, it never seemed to have a lot more power than any other A/B/BN I've run. Of course, this tractor hasn't really been worked hard for some years now. I noticed the tendency to heat up for a couple of years now, but it wasn't a big problem because it hasn't been worked hard or run for extended periods of time. Now I am wanting to take it to a plow day and decided that it was time to do something about it.

I'm pretty sure the overheating problem was due to the 3 double handfuls of rust, scale and crap I flushed out of the block with the pressure washer. I got the idea to clean out the block from gene b on this site. He has been telling us for years how much crud accumulates in these blocks, and he was right! Thanks gene b!

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Nebraska Cowman

09-30-2004 05:46:31

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Re: Can Anybody Identify These Pistons? in reply to Red Dave, 09-30-2004 05:07:57

no clue, they don'r ring any bells here

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Red Dave

09-30-2004 05:09:50

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Another View in reply to Red Dave, 09-30-2004 05:07:57

Look Familiar?

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farmallman

09-30-2004 05:31:43

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Re: Another View in reply to Red Dave, 09-30-2004 05:09:50

How do u know that they are not original?

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Red Dave

09-30-2004 06:03:56

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Re: Another View in reply to farmallman, 09-30-2004 05:31:43

Previous owner told me that it had been rebuilt, and I'm pretty sure that the originals in 1940 would have been flat tops.
Would they have used a piston like this from the factory in 1940?
There is an arrow on them to indicate the correct installation, but no IH or other identifying mark that I can see.

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Stan(VA).

09-30-2004 07:57:54

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Re: Another View in reply to Red Dave, 09-30-2004 06:03:56

Dave,
They must be some old aftermarket ones, not like any of the aftermarkets I see available today. A '41 A I pulled apart once still had 3" bore, flat top, cast iron pistons in it.
Stan(VA).

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JonT

09-30-2004 06:21:27

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Re: Another View in reply to Red Dave, 09-30-2004 06:03:56

An IH piston would probably be marked next to the pin boss, but that would mean pulling a rod out to see...

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Red Dave

09-30-2004 06:35:01

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Re: Another View in reply to JonT, 09-30-2004 06:21:27

Yep, I think you're right. The cylinder walls show very little wear, compression and oil pressure are good, so I'm not going to take it apart any further. I took the head off to get some work done on it and to flush the cooling passages good to address an overheating problem.
I was just curious what pistons these were because all the other A's & B's I've had apart had flat top pistons in them.

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Novel Idea Guy

09-30-2004 07:28:18

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Re: Another View in reply to Red Dave, 09-30-2004 06:35:01

What"s a firecrater look like? That said, did they ever make firecraters for the A/B/C?

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FARMALL POWER

09-30-2004 10:52:28

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Re: Another View in reply to Novel Idea Guy, 09-30-2004 07:28:18

I have a F-12, same block as the A-B-C and the pistons are simaller to those you have there. It was overhauled a number of years ago.

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