aboout my 2 H tractors,parts arent all the same....

Jim in michigan · May 5, 2009

The studs in the manifold on the 42 is a size smaller then the ones on the 44,the pto is different,shifters are different,seat set up is different,distributor is different,one has coil on the distributor,square coil,other is normal round style mounte on the frame,,Starter button location is different as well,one is on the floor by the shifter,other is on a factory looking mount way up on the steering pedestal. JIM

D Slater · May 5, 2009

42 was the last year for the smaller manifold studs and the flat back pto. They were changed by the end of 42 tractors. Starting and lighting were attachments, depending when they were bought or installed affects the type on tractor.
IH made changes to the tractors all through production. I once started a list of all the changes made from beginning to end of production on H and M I could think of. After a lot of pages with no end in site, I give up.
Both your tractors would have came with a magneto ignition.

garytomaszewski · May 5, 2009

Jim,
Almost all the changes you describe could have been options or farmer changes. Sounds like one has IH mag and the other has Delco conversion distributor. Many dealers had a Monroe "easy rider" seat, etc. Don't know about IH but Case had a PTO conversion to the SAE standard 1 3/8 from the stock 1 1/8.

Janicholson · May 5, 2009

As others have pointed out, the external components, and the PTO shaft are all potential differences. Your original post was directed toward the hefty feel of one compared to the other.
Again fluid filled tires and or wheel weights will make a very different tractor out of an H. The castings, engine size, gears and drive components are the same, and interchangeable between those years. If one seems to have seat of the pants more power, the other needs to have a tuneup, including timing check at high idle. They should be very close to the same. The distillate engine will have lower compression than the gas only (unless it has had a different head or high altitude pistons put in it (again not stock)). so it may be off a couple of HP. JimN

f20inmi · May 5, 2009

Engineers get paid to change the product. Reasons behind the engineering changes can address: warranty issues, incidents on test, ease of assembly or manufacturability, cost reduction, power/torque increases, corner conditions (those conditions where a product is used in a unique fashion), abuse (using software), government mandated safety or emissions requirements, new or different applications, supplier change, etc. It can be a challenge to look at two tractors from the same family, but different model years, and understand the reasons why the design has evolved.

Anonymous-0 · May 6, 2009

Both should have mags if the tractors are original. Dist were avail as aftermarket later than when your tractors were built. Over the yrs lots of little gadjects were made like brake locks pto levers to enguage the pto and more.

Hugh MacKay · May 6, 2009

Jim: As I see it, other than the pto and manifold, the rest of the items you mention could fall into one or more catergories; IH options, aftermarket options, dealer or farmer engineering. Those last two have been quite prolific with tractor engineering over the past 100 years.

Jim Becker · May 6, 2009

The starter switch location was one item changed by IH from early to later production. Some of the other differences you see may have been as well, but could be changes to the individual tractors.

aboout my 2 H tractors,parts arent all the same....

Jim in michigan

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D Slater

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garytomaszewski

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Janicholson

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f20inmi

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Anonymous-0

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Hugh MacKay

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Jim Becker

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