1963 Wisconsin s -12d small motor

[Alen]

I acquired a 1963 generator welder with a Wisconsin motor on it. It hasn't ran in 20+ years. I was wondering if this needs to run on any special fuel? It was built when lead fuel was being used and it calls for "regular" fuel which back then contained lead. Is this going to damage the motor by putting unleaded in it? Should I add lead additive? This motor can be run from factory on fuel oil, kerosene, LPG, or natural gas depending on how you set it up. I am worried about damaging the motor. Any pointers would be appreciated. Below are two files for this type of motor and what I could find if that helps at all. Thanks in advance.

 

[oldcodger]

If it is designed to run on propane it should do all right on E0 or E10. Propane engines have the proper valve seats and valves. Highly recommend E0 if you can get it.

 

[Alen]

If it is designed to run on propane it should do all right on E0 or E10. Propane engines have the proper valve seats and valves. Highly recommend E0 if you can get it.

It has a gas tank with it and was run on that. I would prefer to stay gas. I am also not sure if it would put out the same power. I found an experiment with natural gas that ran fine but delivered less power. For it to power a generator welder I am not sure that is such a good thing.

 

[Langanobob]

I nave several old Wisconsin engines. They are rugged industrial engines designed to run for a long time. I believe the valve seats were all hardened even prior to unleaded gasoline. You are correct that the engine will put out more power on gasoline.

You might find a lot of other Wisconsin owners on the Smokstak forums.

 

[Alen]

I nave several old Wisconsin engines. They are rugged industrial engines designed to run for a long time. I believe the valve seats were all hardened even prior to unleaded gasoline. You are correct that the engine will put out more power on gasoline.

You might find a lot of other Wisconsin owners on the Smokstak forums.

I was thinking of trying there, I will now thanks. I just don't want to take my chances. Rather take some time to fact check.