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Garden Tractors / Mowers / Scooters Vintage lawn and garden tractors, mowers, snowmobiles and other old machinery that is driven by small air cooled engines.

Garden Tractors / Mowers / Scooters

What was this engine used for?


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  #1  
Old 02-28-2006, 03:11:46 AM
twoholer twoholer is offline
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Default What was this engine used for?

I bought a Fairbanks Morse engine at a yard sale. It looks really old, maybe an old two wheeled tractor engine. It is a one lunger. The Serial number is, #3556005. It also says FM XD1B7 on the plate. How old is it and what did it come off of? What is the Horsepower of this engine? I thought I might build a small Go-Cart for my kids, or maybe use it to power a small generator. Hey it was a working engine, how could I pass that up? twoholer
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Old 02-28-2006, 09:57:49 AM
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John Newman, Jr. John Newman, Jr. is offline
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Default Re: What was this engine used for?

Here is the very little information I have on these engines:
Fairbanks Morse model 1B-7
1 cyl., horizontal shaft
2.5HP @ 1,800 RPM
Manufactured by D.W. Onan and Sons
I have a couple of generators powered by this model and one engine by itself. Good strong runners. As shown in the pictures below, one has a gravity feed fuel system and the other has a pump.

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Old 02-28-2006, 08:15:06 PM
Zira Zira is offline
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Default Re: What was this engine used for?

If it isn't the one that John posted, that number is for the Fairbanks-Morse mag used on a Wisconsin, you may have one of those. If you could post a picture or description of a carb...
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Old 03-02-2006, 02:18:12 PM
twoholer twoholer is offline
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Default Re: What was this engine used for?

Zira and John;
Thanks for the replies. I think you may be right Zira, about it being a Wisconsin. I got the serial and model numbers of the Mag. John, viewing your photos made me realize I am going to need a fan shroud if I am going to cool my engine properly. i will try to upload a couple of photos. twoholer
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Old 03-02-2006, 03:30:06 PM
Bill Sherlock Bill Sherlock is offline
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Default Re: What was this engine used for?

I believe your engine may be a Wisconsin ABN, AKN or AEN model by the round gas tank and shape of the air cleaner. The ABN has a HP range 2.2 to 4.6; AKN 3.2 to 6.2; AEN 4.5 to 8.25. If you were to pull the head and measure bore and stroke you should be able to determine which model you have. ABN - 2 1/2" x 2 3/4"; AKN - 2 7/8" x 2 3/4"; AEN - 3" x 3 1/4". By weight the standard ABN and AKN are about the same - 76 lbs. The AEN weighs about 110 lbs.

Bill
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Old 03-02-2006, 08:25:31 PM
Zira Zira is offline
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Default Re: What was this engine used for?

The tilted spark plug makes it a member of the ABN/AKN family. The 8 head bolts makes it an AKN (or AK, but yours looks new enough to be an AKN). Oddly, you have all the hard-to-find parts (gas tank, air cleaner, carb, magneto) but are missing the air shroud. Should be an easy one to restore unless something is broken inside.
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Old 03-02-2006, 11:19:24 PM
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MoRo MoRo is offline
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Default Re: What was this engine used for?

One thing for sure, parts won't be a problem if there is something wrong internally. You might be able to get new parts through a small equipment dealer.
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