John Deere a

Mat G · Jul 23, 2013

I'm looking to find info about the cyclone a. I'd like to know more about it.

buickanddeere · Jul 23, 2013

Check E-bay for books by JR Hobbs.

Pete in MD · Jul 23, 2013

There's not much to learn. The cyclone A's and B's got that nickname from Deere's advertising about a change in the design of the head on late styled A and B tractors. A serial# 584000 & up and B serial# 201000 & up. A ramp around the intake valves was advertised as creating a "cyclone" in the fuel/air mixture to give greater power.

Anonymous-0 · Jul 23, 2013

Ok. I just bought a 1952 AW. 700641

Bob · Jul 24, 2013

And, about 40 years later, GM introduced the "Vortec"!

I wonder how many spins in the grave Harry took over the re-convention of his invention!
Ricardo, the swirl combustion guy

Stan - Florida · Jul 24, 2013

I can send you a scan of a page from a JD brochure that describes it and has a picture.

My e-mail is open...drop me a line so I'll have your e-mail address if you want it.

Stan

Mike M · Jul 24, 2013

Funny thing is the ads didn't start until the pressed frame tractors,but the B had the exact same cylinder head back to 1941 ! The A was of similar design too back then but not the exact same interchangable part number.

John Deere a

Mat G

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buickanddeere

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Pete in MD

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Anonymous-0

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Bob

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Stan - Florida

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Mike M

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