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Does anyone know the difference between the 9/10/11hp Tecs on the 26-30" Craftsman blowers?

Compression? Rpms? Cam?

I have a 9/29" and it looks exactly like an 11/30" I've seen up close. If it wasn't for the stickers- I couldn't tell them apart?
 

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From what I've seen, it's "badging." Same engine with a different label. MH
 

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Do they use different Crankshafts; if not, then it's mostly just Bore.

Do they use different Heads; if not, then it's strictly Bore.
 

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I have a Tecumseh on a MTD that's labeled as a 10.5 hp. Sometimes it sounds more like marketing than anything else. I don't ever remember seeing another snowblower engine with a x.5 hp rating.
 

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I have an 8.5 HP; but it does seem that everyone has dropped the expression of their HorsePower Ratings and now put the engine Displacement in their advertising, expressed in CCs.
 

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I have an 8.5 HP; but it does seem that everyone has dropped expressing their HorsePower Ratings and now just puts the Displacement in their advertisg, expressed in CCs.
Everyone's hp numbers we skewed for years. Then an SAE standard on measuring hp was established. Problem was the SAE number was lower them the number the manufactured were advertising. The gross torque number was the higher number so that became the number to advertise for most manufactures. Others just stuck with CC's.

Torque is the important number, hp is a calculation of torque.
 

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I've had a 7 hp and a 10 hp TEC apart side-by-side. In that case the bore, block and cylinder head are definitely different. Included was the carb setup, muffler and some other things. On the bigger ones, I'd suspect there's at a minimum some subtle differences between them.


If nothing else, see if you can get manuals on them and start comparing part numbers.
 

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I think the difference between the 9hp/10hp/11hp is Horsepower... hehehe

I've got a Craftsman 10/28....had it since new....got the manual...

Is there anything I can get out of the manual for you..??

James
 
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