[AT] tractor engine

[charlie hill]

Actually Tom tractors was a sideline for AC.  They built  everything from
flour mills to steam turbines.   Their first big engine in 1904.  It was a
1000 hp Nurnberg Gas engine design.  In 1929 they built some 10,000 hp
engines for Illinois Steel Co.  The engines weighed 2000 tons each.  In 1980
they built three 43,200 hp engines for Sulzer Bros. Ltd.  Those were the
last as AC went out of business in '84.   They also built the 100,000 hp
hydro turbines used at Niagra Falls.

Charlie
----- Original Message ----- 
From: "Tom" <tmartin at xtra.co.nz>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Friday, April 23, 2004 2:59 PM
Subject: Re: [AT] tractor engine


> charlie hill wrote:
> >
> > To heck with the engine and the tool box.  I want to see the machine
shop
> > they turned the bearing surfaces in.
> >
> > Actually Allis Chalmers built some engines about that size in the early
> > 70's.  They didn't have as much rated HP but the actual engine size was
> > similar.   I still wonder how they turn the bearing journals.
> >
> > Charlie
>
> I didn't think Allis was into large marine engines, Fiat was.
> Perhaps that was the connection?
>
> As for machining the cranks, the cranks are of built up construction,the
throws
> being machined before the main bearing
> journals are shrunk in and the crank assembled. After assembly
> the mains are then remachined.
>
> I've posted some pics of a throw, one being machined, and a crank
> shaft lathe that is capable of machining the crank of the big Sulzer.
Capacity
> 300 tons:
>
> http://shopswarf.orcon.net.nz/crnkthrow.jpg
>
> Tom
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