H4 magneto mounting base

slydog · Oct 22, 2017

Are there different mounting bases for an H4 magneto? I have one that when mounted to an H Farmall the magneto is tipped way out
where normally it is pretty much straight up and down. What would this mount be for?

ndbjda · Oct 22, 2017

If I remember correctly it's for a Cub.

tractorguy2 · Oct 22, 2017

Yes, there are different flanges for the H4 magneto. There was a magneto used on some IH balers that the flange was turned at about a 45 degree angle. These magnetos will have the letter "Y" in the serial number. The drive will be marked "RX".

Jim Becker · Oct 22, 2017

I assume you are asking about flanges as the H-4 is flange mounted, not base mounted. The flange that puts the magneto at a 45 degree angle is for the 69ci Continental engine used on some implements. It only has a 10 degree lag angle so the tractor engine won't get enough spark advance.

The Cub engine uses a J-4 magneto.

H4 magneto mounting base

slydog

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ndbjda

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tractorguy2

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Jim Becker

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