511 Groff Way, Lee's Summit, Missouri 64081.
When a friend of mine met me in the local coffee shop and said he had found an old Wisconsin four-cylinder air cooled in-line engine, for me, I told him they didn't make an in-line Wisconsin, I didn't think.
He came to think he had read the nameplate wrong, maybe it wasn't a Wisconsin after all.
He took me to see the widow lady in whose meadow this old machinery was lying. Nearby the engine was the Case combine that the four cylinder had come from.
Yes, it is a Wisconsin four-cylinder in-line air cooled and it has overhead valves, a rare bird for sure!
I've called our Kansas City, Missouri parts supplier for Wisconsin parts, looking for an old service or parts book for the type A04S.
I'm sure the parts man I talked with is much younger in years than my four-cylinder inline. 'No such motor listed,' he replied.
I've also been in contact with a local welder and shop owner, several years retired. He assured me that he at one time he had the service and repair manual for the four in-line air cooled Wisconsin, but they were rare.
These pictures show the engine as we found it in the meadow. The type, or model is A04S, No. 56016.
I'd very much like to correspond with someone who has information on this different engine.