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Wisconsin engine

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Russ Smart

11-21-2002 16:52:53




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I was recently given an old MOTT corn stalk chopper. It has a two cylinder wisconsin engine on it that would turn over but not start. I filed the points and got good spark, cleaned the carburator but it still woud'nt start. last night I poured marvel mystery oil in the spark plug holes until it was dripping out of the carb. Tonight I threatened to drag it in the garage and tear in down, but wa-la a few pulls on the crank and it was running! My question is do you think the valves are bad and if I tear it down can I get a new head gasket?

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Steve

11-22-2002 04:39:44




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 Re: Wisconsin engine in reply to Russ Smart, 11-21-2002 16:52:53  
Russ, I live in Amish country, so I've had more years of experence than I care to remember on these motors. Wisconsin is one of my favorite old engines, but they had a few quirks about them. By pouring liquid down the cylinders got it running for you, that tells me that the engine must having been sitting around for awhile and lost compression. This is fairly common. The problem would not have been the valves, but rather dry cylinder walls and the rings were not sealing well untill you pour your marvel mystrey into them. If valves are leaking, no amount of marvel would have helped. To keep this from happening again, each time before you shut the motor off, (only if it is going to sit for an extended period of time) I like to remove that small 1/8" pipe plug from the intake (just above the carb) and pump oil into the hole while it is running. When it starts to smoke like crazy, shut it off. I promise, the next time you go to start it, (even if it is 2 years later) it will start sooooo much easier. Hope this helps, Steve

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tiger88

11-22-2002 03:27:22




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 Re: Wisconsin engine in reply to Russ Smart, 11-21-2002 16:52:53  
my 4 cyl. wisconsen will hang #3 exhaust valve if left sitting. I got a gasket from napa.



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David Shepp

12-03-2002 20:33:25




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 Re: Re: Wisconsin engine in reply to tiger88, 11-22-2002 03:27:22  
could be a carbon build up also ,but most likly it's dry cylinder walls the oil works almost everytime but you only need a shot of 30 wt to much marvel may break down your crankcase oil and or deposit bits of carbon on or in cylinder and that is'nt good may damage rings,bearings,and anything else that moves within as far as head gaskets remove the head bolts and tap on head with leather or brass hammer this should be done with love and your head gasket should release easily from block "undamaged" clean it up coppercoat it gold or silver spray paint works well also and then reuse it good luck Dave Shepp

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