long bang forble tricycle cub done

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long bang forble tricycle cub done

Postby Landreo » Tue Aug 28, 2012 2:59 pm

At least for a while:

A long bang engine is a 180 firing engine and a forble is a 4 cylinder convertes into dual 2 cylinders so the end results is a 4 cylinder that sounds and functions like a 2 cylinder John Deere engine.

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The original drawbar was a swinging bar which is laying in the weeds somewhare so I put on another old drawbar. Not painted. The spacing and width of the tractor is the same as the original cub.

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Started out as a parts tractor, a 1 cylinder tractor, a 3 point hitch tractor, loader tractor, then a tricycle cub

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Maching the axle tubes prior to welding

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Axle shortened, pinned, stepped prior to welding. Machined smooth and balanced on a lathe.

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This is the top of the pedestal, the center round tube fits into this plate, welded, the plate bolted under the bolster. This is why I hate machining, all those little curly metal slivers get into my socks.


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Cub spindles test fit.

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Rear axle stuff done

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Seat support

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Made a new battery box. This is why I like 12 volts, a $25 battery!

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Engine brace, for another post

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Oil guage never worked
Need to replace
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Cap on distributor, longer starter lever, dual sparc coils, hitachi alternator. Engine brace not mounted yet

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I used two dual spark motorcycle coils to fire the plugs, two condensors, two points

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To run as a "forble" I needed to add a second set of points 90 degrees from the original, I used a set of lawnmower points to get the 90 degree offset. I then ground the lobes off of the diistributor cam to leave only one lobe.

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Pilot plug to guide the hole saw so I can move the clutch pedal shaft to the left side. The right side was plugged with a rod with a 3/4 inch hole for the brake shafts

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Dodge truck, Centaur tractor, backhoe waiting their turn.



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I still need to make a bronze casting for the radiator cap. The Stainless muffler ended in disaster twice, not able to mig or tig 27 guage steel so I finally gave up and just covered the exhaust pipe with a SS pipe.

The engine sounds like a JD 2 cylinder tractor and seems to run/start fine. Steering is a little tight but has loosened up since I oiled the shaft. I'll park it under a tree and more on to the next project.
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Re: long bang forble tricycle cub done

Postby rogerk » Tue Aug 28, 2012 3:13 pm

way cool !!! :-:-): wish I had half the talent you do.
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Re: long bang forble tricycle cub done

Postby Bob Perry » Tue Aug 28, 2012 3:13 pm

Wow, what talent. Might we be able to see this project at any upcoming events?
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Re: long bang forble tricycle cub done

Postby Former Member » Tue Aug 28, 2012 3:15 pm

I wondered the other day if you ever finished that project. I think it is very cool and would love to have one like it some day. I wish I had your skills.

I hope while it is parked under that tree, it doesn't get neglected and all your hard work go to waste.

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Re: long bang forble tricycle cub done

Postby gitractorman » Tue Aug 28, 2012 3:20 pm

VERY NICE! Amazing the talent of ingenuity and machining that some folks on here have. I really like that you kept the rear wheel spacing the same, you should still be able to mount a plow or mower deck if you ever wanted too. I'll bet the forble has some real torque too. I would definitley like to see this in person sometime.

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Re: long bang forble tricycle cub done

Postby bythepond88 » Tue Aug 28, 2012 4:22 pm

Amazing work! :big afro:

Any chance of a short video so we can hear her?
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Re: long bang forble tricycle cub done

Postby Super A » Tue Aug 28, 2012 4:45 pm

The machining work fascinates me. Wish I could have just dropped in and watched.

How did you go about welding the axle housings?

Al
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Re: long bang forble tricycle cub done

Postby RaymondDurban » Tue Aug 28, 2012 5:27 pm

Well done! Very nice!
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Re: long bang forble tricycle cub done

Postby tst » Tue Aug 28, 2012 7:12 pm

Nice to see the bridgeport being used, not gathering dust, nice project
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Re: long bang forble tricycle cub done

Postby Bill E Bob » Tue Aug 28, 2012 7:20 pm

Elegant Engineering :worthy:
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Re: long bang forble tricycle cub done

Postby Rob in NH » Tue Aug 28, 2012 7:47 pm

real nice job
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Re: long bang forble tricycle cub done

Postby poppy-1948 » Wed Aug 29, 2012 10:34 am

An amazing feat of engineering. :applause:
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Re: long bang forble tricycle cub done

Postby Jason (IL) » Wed Aug 29, 2012 1:04 pm

One of the coolest things I've seen in a long time. Now I want one of my own.

Thanks
For sharing, nice job.
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Re: long bang forble tricycle cub done

Postby BJ Moretz » Wed Aug 29, 2012 1:27 pm

Very Cool Indeed
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Re: long bang forble tricycle cub done

Postby BJ Moretz » Wed Aug 29, 2012 1:30 pm

Very Cool Indeed. Can offer more detail on the conversion to a tricycle ?
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