MTD Tecumseh trying to repower with Predator 212 - Snowblower Forum : Snow Blower Forums
 
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post #1 of 8 Old 02-08-2020, 03:04 PM Thread Starter
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MTD Tecumseh trying to repower with Predator 212

As the title says i’m trying to repower my MTD single 7/8 shaft with a predator HF engine that so many others have done. I am having a **** of a time figuring out how to make the pulleys work. I’ve purchased a 7/8 sleeve adaptor and the keyway for the original pulleys only lock that. I can’t figure out how to lock the sleeve from spinning on the shaft. Any others want to chime in if they’ve accomplished the similar project on a single shaft 5hp
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post #2 of 8 Old 02-08-2020, 03:48 PM
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I would simply get new pulley's. I didn't bother using the original Tecumseh pulleys when I repowered my MTD. The Predator 212cc has a 3/4th inch keyed shaft and you can put a 3-inch pulley on the top to increase the impeller speed. Since it is a single shaft engine it will be much easier to do than my double shaft MTD5/22 was.
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post #3 of 8 Old 02-08-2020, 05:38 PM
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Welcome to SBF Dan. I'm guessing that your original MTD pulleys have the key molded into the pulleys and they are not high enough to go through the shaft adapter and into the crankshaft. If so, the easiest way would be to buy two new 3/4" pulleys with "key ways" to fit over the crankshaft key as Gustoguy suggested.

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post #4 of 8 Old 02-08-2020, 09:52 PM
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As others have said, you will have to get aftermarket pulleys. If the drive pulley is 2in in diamter, get an AK20, for a 3/4 shaft and the auger drive is approx 2 3/4, get an AK27 pulley. Also, get some key stock, and make a long key for the shaft.
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post #5 of 8 Old 02-09-2020, 11:05 AM
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Tractor supply has a selection of pulleys
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post #6 of 8 Old 02-09-2020, 01:38 PM
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to SBF Dan



to the re-power section.

Many different sources for a proper pulley.
https://www.ombwarehouse.com/search....ection=product
https://www.mcmaster.com/v-belt-pulleys
https://www.grainger.com/category/po...v-belt-pulleys
https://www.fastenal.com/product/pow...sExpanded=true
Amazon, Ebay and most big box and hardware stores.

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post #7 of 8 Old 02-10-2020, 04:33 PM
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Isn't the shaft to short on some of the predator repowers.. and people take advantage of the length of the sleeve? ..to make up the difference.
Or at least a long outside pulley just to be sure


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Last edited by Shovel; 02-10-2020 at 04:35 PM.
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post #8 of 8 Old 02-27-2020, 11:04 PM
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Dan55106 curious what you ended up doing.

Here is a link to what I did. I think the MTD and the Craftsman are basically the same.

https://www.snowblowerforum.com/foru...r-repower.html

Herb

Last edited by burt8810; 02-27-2020 at 11:08 PM. Reason: change name
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