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Wisconsin Engines Single cylinder up to V4 engines.

Wisconsin Engines

Wisconsin AC4-I First Start


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  #1  
Old 09-09-2016, 08:56:08 PM
farlander762 farlander762 is offline
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Default Wisconsin AC4-I First Start

Hello,
This is my first post to this forum. I picked this up from my grandfather's estate. I think everyone else in the family either forgot about it or didn't know what it was to start with. As I recall, my grandfather told me that they used it to start a big hit-or-miss engine, big enough that it took a ladder to hold the exhaust valve(s) open for startup. He would have used it somewhere near Roby, TX.

I will be placing it for sale once I know what it's worth.

https://youtu.be/nniy9Pvy78M

Here's what I know:
Manufactured in January 1943 (searched s/n).
Wisconsin optional clutch (works).
Purchased by Army Air Corps (later USAF), no idea what they used it for.
Overhauled in March 1953 (it has a second nameplate on it).
Integral ignition system with manual spark advance (no magneto).
Stromberg R-3/4 right-angle carburetor (only one I've ever seen).
Electric start.
Generator electrical with voltage regulator disconnected.
Only one I've seen in this housing.
I have all of the shrouds and covers.
Had two bad ignition cables so I replaced them with the first thing that came to hand, trailer wire (white, brown, green, yellow)! Hey, it worked.
The spark advance cable is rusted solid.

Here's what I did to make it run:
Had two bad ignition cables so I replaced them with the first thing that came to hand, trailer wire (white, brown, green, yellow)! Hey, it worked.
Replace the ignition coil.
New cranking battery, not a golf cart deep cycle.
Replace the + lead from the switch to the coil (dang rats).
Bypass the fuel pump and add an OMC (Evinrude/Johnson) fuel connector. I will be taking it back off before I sell the rig.
Lubricate the tachometer cable.
Oiled the valves before attempting starting.
Oiled pretty much every moving thing I could get to.
Cleaned a huge dirt dobber nest from the starter.
Disassembled and inspected the carburetor.
Put the choke, throttle, and spark cables in an industrial ultrasonic cleaner for about 3 hours. Still didn't help the spark cable.
Changed the oil. Castrol straight 30W.
A few other minor points.

Pictures were taken while I was working on it so it is in some state of disassembly.

PLEASE LET ME KNOW WHAT YOU THINK! I WILL ALSO ANSWER ANY QUESTIONS I CAN!!!

Lance
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  #2  
Old 09-09-2016, 09:10:41 PM
Zira Zira is offline
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Default Re: Wisconsin AC4-I First Start

Neat engine! The dog house doesn't look too different from most. I am guessing it ran after what you did to it? I would try to replace the trailer wire ASAP but the rest seems logical.
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Old 09-09-2016, 09:26:18 PM
farlander762 farlander762 is offline
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Default Re: Wisconsin AC4-I First Start

Quote:
Originally Posted by Zira View Post
Neat engine! The dog house doesn't look too different from most. I am guessing it ran after what you did to it? I would try to replace the trailer wire ASAP but the rest seems logical.
Oh yeah! Runs great. I really don't want to spend any more on it. Just wanted proof of life. The YouTube video shows my first start.

I forgot to mention that I also have a factory printed manual for it. Not a copy or scan.
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  #4  
Old 09-09-2016, 10:46:34 PM
Vanman Vanman is online now
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Default Re: Wisconsin AC4-I First Start

Wow, sounds nice. Sounded like it stopped rather abruptly at the end. Still, likely worth more than a couple hundred bucks I'd think, so that exceeds my supply of play money.
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Old 09-10-2016, 08:41:00 AM
farlander762 farlander762 is offline
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Default Re: Wisconsin AC4-I First Start

My wife stopped the video rather abruptly. The smoke smell from the mixed gas was getting to her. She has a sinus infection right now.

A couple more pictures. My helper cat...
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  #6  
Old 09-10-2016, 02:15:25 PM
Vanman Vanman is online now
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Default Re: Wisconsin AC4-I First Start

Ah, I see. Well, it looks like someone is enjoying being up close and personal with the engine. And will keep the rats away.
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Old 09-10-2016, 08:42:44 PM
David A. David A. is offline
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Default Re: Wisconsin AC4-I First Start

let me know what u asking for it, thanks
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Old 09-10-2016, 11:39:24 PM
Terry Hammer Terry Hammer is offline
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Default Re: Wisconsin AC4-I First Start

Its a good thing it has electric start! Hand cranking would of wore you out!The motor sounded great!Sure would like to see a Ariens Model A rototiller run with the old AC 4!
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Old 06-19-2019, 12:48:55 PM
boone007 boone007 is offline
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Default Re: Wisconsin AC4-I First Start

I could use a copy of manual if possible thanks dan !`
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