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Wisconsin S7-D


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#1 olcowhand ONLINE  

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Posted January 02, 2011 - 12:43 PM

Brian, or anyone familiar with the Wisconsin S7-D.....you can barely feel cooling air coming off the top end finning on my T-63 Bush Hog tractor engine. I checked & all is clear, no flywheel fins broken, & flywheel screen is clean. Any other engine I've had, you could feel lots of cooling air coming through the fins, but not this one, just a slight amount. Does this sound normal? I guess it has to be normal, but thought I'd ask.

#2 Gtractor OFFLINE  

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Posted January 02, 2011 - 01:22 PM

Maybe a mouse nest in the top of the shroud?

#3 DH1 OFFLINE  

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Posted January 02, 2011 - 01:28 PM

Not knowing much about Wisconsin's but is the cooling air coming out some place where it shouldn't be? A small shroud missing? Or maybe too much clearance between the top of the flywheel fins and the main shroud? Wrong shroud?
I'm guessing here just trying to help.

#4 bhts OFFLINE  

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Posted January 02, 2011 - 02:33 PM

Dan, I don't belive you will feel alot of air moving on the little s7-d.

#5 olcowhand ONLINE  

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Posted January 02, 2011 - 02:48 PM

I can see down through all areas, and NO blockages at all, just not much air movement. Can't get the pto off the front till I get a manual to see how it's put together, then grind off the welds & remove. Until then, I can't get in there for a perfect view.

#6 Gtractor OFFLINE  

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Posted January 02, 2011 - 03:43 PM

I got it, I got it!! After you returned from BIL's down the road, your hands were frozen and you tried to warm them by using the heat from the engine and thats when you noticed the lack of airflow. Try it again with your hands warm enough to actually feel the flow. :thumbs:

whaddyasaytathat? :rolling:

#7 olcowhand ONLINE  

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Posted January 02, 2011 - 04:07 PM

I got it, I got it!! After you returned from BIL's down the road, your hands were frozen and you tried to warm them by using the heat from the engine and thats when you noticed the lack of airflow. Try it again with your hands warm enough to actually feel the flow. :thumbs:

whaddyasaytathat? :rolling:


Maybe that's it!!!! :rofl2: Actually, it's impossible to get my hand right at where the air comes around the cylinder & difficult at the head fins. Then there's the hot muffler in the way too. So I used cardboard to make deflecters & I feel the air now, and it's a plenty....or maybe it's just my hands aren't numb anymore.:bigrofl:

#8 Bolens 1000 OFFLINE  

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Posted January 02, 2011 - 04:07 PM

From what your describing it sounds normal to me. If all the sheet metal is in place then it is fine.
My S-8D's are just like you described.

#9 mjodrey OFFLINE  

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Posted January 02, 2011 - 04:57 PM

I also agree,that not much airflow is somewhat normal.

#10 olcowhand ONLINE  

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Posted January 02, 2011 - 05:07 PM

I guess that my dealing with Onan engines so much, I'm accustomed to the jet speed cooling air that they put out. I ran this little engine a while today & never got hot at all.

#11 Bolens 1000 OFFLINE  

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Posted January 02, 2011 - 07:47 PM

Yes, the wisconsins do tend to have lesser air flow compared to other engines.
When I checked the air flow on the gravely ( which has an onan) I thought It would blow me away LOL




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