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post #1 of 10 Old 08-13-2019, 08:11 AM Thread Starter
evh
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Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

I picked up a Craftsman LT2000 with a 17hp Kohler that did not come with the plastic duct that sits on top of the blower housing to direct air from the vents in top of the hood. I can see wear marks on top of the plastic blower housing that looks like one was there at one time. I didn't think I needed one but further investigation shows it facilitates cooler air intake which may prevent overheating. Also likely helps in flowing cleaner air.

Thoughts? It looks like it is part number 150127. Anyone have a spare?

Thanks.
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post #2 of 10 Old 08-13-2019, 10:57 AM
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

That guide helps flow cooler air into the blower housing. Without the guide, heated air from under the cylinder can get re-circulated back into the cooling inlet, and produce a hotter running engine. The notable symptom with todays 'fuels' is that the engine may suffer from percolation of the fuel, and what was called 'vapor lock' back in the day. If your fuel crosses from one side to the other to feed the carburetor, and uses a metal line passed through the blower housing, you may suffer the percolation/vapor lock without the shroud. I think it was called 'turbo cooling' by Sears when the products were new. There are several varieties of shroud, some being taller, and others having the 'tray' that extends rearward from the engine.
Is it absolutely necessary? No. I doubt that it has a lot of effect on engine temperature, though I expect it would drop the running temperature to some degree. In my case, with no 'factory' shroud, I experience vapor lock on hot days, and can avoid the symptoms and problem by removing the hood, allowing free intake of air. With the hood on, the engine seems to experience erratic misfire. Not a 'complete' miss, but more of a stumble.
I think a substitute could be made from readily available materials, such as plastic or sheet metal. Given the unavailability of the part(as built), the only option beyond making my own, is to find one from a model year one or two years newer when they were factory installed. As I see it, I need a partial circle that is open to the rear, and come close to the underside of the hood. I could add some 'rubber' gasketry, or foam rubber at the top to make a better seal on the bottom of the hood sheet metal.

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post #3 of 10 Old 08-13-2019, 02:00 PM
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

Man Ive thrown more of those away than I can count and never had one that didnt break haha. Good luck finding one but I wouldn't loose sleep on it. Check ebay....
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post #4 of 10 Old 08-14-2019, 06:06 AM Thread Starter
evh
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

Thanks for the quick reply's folks. My gas line is made of rubber and does not cross the engine. I did find some on eBay and other sites so I will likely purchase one to make sure I don't have any heat related issues. I thought I would ask here in case someone had one kicking around and wanted to make a few bucks.

I attached a picture of my beast.
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post #5 of 10 Old 08-14-2019, 10:11 AM
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

I have one of those sitting in my shop but don't remember what mower it came from. Think it might be an old yardpro waiting on an engine replacement.
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post #6 of 10 Old 08-14-2019, 10:26 AM Thread Starter
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

Hi 38racing, I appreciate the quick response. I see you are from Canada. I am in the states, I am pretty sure shipping would be way too much. Let me know if you are located in the states.
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post #7 of 10 Old 08-17-2019, 01:29 PM
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

Quote:
Originally Posted by evh View Post
Hi 38racing, I appreciate the quick response. I see you are from Canada. I am in the states, I am pretty sure shipping would be way too much. Let me know if you are located in the states.
Ha I found one in the junk pile in my loft, if you want it, its yours.... Im in SE Pa. Will ship for cost....
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post #8 of 10 Old 08-17-2019, 02:50 PM Thread Starter
evh
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

Thank you so much mrshaft696, I appreciate you looking for it. I did order one from eBay yesterday (timing ...). I should have it early next week. If that doesn't fit, I will take you up on your kind offer. I'll keep you posted.

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post #9 of 10 Old 08-17-2019, 06:26 PM
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

I've never seen an issue with not having one installed.
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post #10 of 10 Old 08-18-2019, 06:53 AM Thread Starter
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Re: Craftsman LT2000/Kohler 17 is Blower Fan Duct needed? Have one for sale?

My guess is in most situations not having one creates no issues. But I bet there are some situations excessive idling, etc. that might create an overheating condition where pulling the air from the top helps. Likely also keeps the engine a bit cleaner pulling from the top vs from closer to the ground.

The part was cheap enough that I will install it.
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