Side Mount Bosch Magneto Model T ? Tractor ?

[Phaeton]

Need help identifying what looks like an accessory side mount 4 cylinder Bosch AT4 magneto circa 1910's 1920's .  Looks very similar to ones used for Model T Ford but I have not been able to locate any information to verify.  Any help would be greatly appreciated.

[Oldtech]

I'm thinking tractor, but what?  Gear does look T-ish though

[Mark Wetherbee]

I think it’s for the Fordson tractor. It has been several years since I saw one but pretty sure that’s it…

[Mark Gregush]

Tractor wouldn't have anywhere for that to mount. Most Fordsons used a cross drive when fitting the magneto that was driven off the end of the camshaft. The OD of the gear and the locating boss behind it look too big to fit in place of the generator, along with the mounting hole placement for it to be Ford Model T.  Rotate the housing 45 degrees counter clockwise for proper orientation on the Model T engine. 

 

[Phaeton]

I agree that while the gear looks to possibly align to a Model T gear, the generator opening would be to small for it to allow the Magneto mounting bracket to install.  Could it be for earlier than 1919 Model T, possibly needing another bracket?  Thanks for the input and thoughts, as we try and narrow down the application.

[Phaeton]

Further research shows that the pic below is AT4 unit set up for Model T generator.  As Mark suggested, it clearly will not work for the Model T generator cars.  Looking like my unit will not work for a Model T.  

[1912Staver]

The mount and drive gear looks a lot like the one on a early 1930's McCormick - Deering tractor I used to own. But they used their own { International Harvester } magneto's , not Bosch. My guess would be some sort of late 1920's / early 1930's tractor.

[wayne sheldon]

The gear on your magneto is way too large, too many teeth, to use on a model T regardless of mountings. The magneto could probably be used on a model T with a proper gear and mountings. That mounting could possibly with considerable alterations be made to work for a model T. However, it clearly was not intended for a T. I agree with others that it most likely was for some tractor or industrial use engine. The mounting is similar (but not the same!) as a 1950s Le Roi industrial air compressor my dad used to have.

[Dandy Dave]

The cast Iron mount looks like 1920's-1930's International Harvester to me. F-20, 10-20. Will also fit others. 

[Dandy Dave]

On 11/9/2023 at 7:06 PM, 1912Staver said:

The mount and drive gear looks a lot like the one on a early 1930's McCormick - Deering tractor I used to own. But they used their own { International Harvester } magneto's , not Bosch. My guess would be some sort of late 1920's / early 1930's tractor.

Yes. That. I've owed a bunch through the years. The mag is a replacement some farmer put on it. If it fit's, use it.

 

[Dandy Dave]

On second though not IHC. As the timing was adjusted with bolts rather than a lock nut on a tapered shaft. I've had my hands on one like that before. Suffering from old timers disease here. Been there. Done that. Can't remember.

Edited November 13, 2023 by Dandy Dave (see edit history)

[Oldtech]

Case used that timing system.

[Phaeton]

Thanks everyone for sharing, seem to be getting a lot closer.

[Dandy Dave]

The bracket on this 1930 Model L Case looks similar.  

 

[Phaeton]

That bracket does look similar in size and shape.  We might have a match. Thanks Dandy Dave