12-25 mogul

[bear]

first made in 1912 as a 10-20 it was rerated to 12-25 after testing and made until 1918 you can see this one running in crosby north dakota 3rd weekend in july every summer

[parts man]

Thanks for the pic Bear! Neat ol tractor! I didn't realise they were so closed in! Is that the 4 cylinder engined tractor?

[jodyand]

Thats a odd looking tractor did it come that way or did someone close it all up?

[drbailey]

It just blows my mind how this great hobby got started, It had to be hard work

[bear]

not sure on the # of cylynders i don't think i've seen it with the sides open. thats the way it came from factory keep the sun off of you and funnel all that engine heat back

[parts man]

I remember reading about an IH 10-20 model. It was a 4 cylinder, and there were 2 main bearings, roller bearings and lifetime guarenteed. As I remember from the article, IH had to replace VERY few.

[bear]

the later 10-20 and 15-30 tractors had the roller brgs
i forgot to look again this year but book i have shows that 12-25 as a 2 cylynder

[parts man]

Thanks for the info Bear! :fing32:

[mgood]

Would that be a twin opposed? One pointed forward and one pointed backward?

[bear]

doesn't say if it opposed or not but it does say 7x8 bore stroke and 550rpm thats spinning right over for an engine that size back then

[mgood]

Yes Sir that was really spinning; was a few years later before they came out with the power stroke theory.

[Wingnut]

doesn't say if it opposed or not but it does say 7x8 bore stroke and 550rpm thats spinning right over for an engine that size back then


That weird I can't find any information of the engine set up either!!!!

But I would still like to have one or two :sidelaugh

[mgood]

This Tractor must have been very low production as none of the IHC books I have on hand give any more information than Bear has; even the book on the early models written by RBGrey do not list it.. The reason I asked about twin opposed is this tractor looks remarkably similar to the Coffin Case which was twin opposed; left cyl pointed backward right cylinder pointed forward; however this model may not be as such.