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Discussion Starter #1
My B&S 8hp seemed to bog a bit in heavy stuff. I have a 10/33 Nona that no one seems interested in. I'm thinking the Tecumseh might be an easy swap. A hopped up Bobcat could be fun.
 

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My B&S 8hp seemed to bog a bit in heavy stuff. I have a 10/33 Nona that no one seems interested in. I'm thinking the Tecumseh might be an easy swap. A hopped up Bobcat could be fun.
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DO a compression test and before you do any transplant surgery then change the V belt or belts as belt slip can cause issues with torque loss.

If the compression test is good you can always buy bigger fuel jets for the carburator to increase the power and increase the torque.
 

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Discussion Starter #3
I don't think there's anything wrong w the 8. Taking the 10 from the big machine is just a thought. It is a good backup even if a Bear to handle for me.
 

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Discussion Starter #5
Been a year. Just got blowers out of shed and mowers put away. Checked b&s parts pix on the off chance this one had an auto compression release. Not on that motor so strip for a look at valves. I thought last years post might have dredged up someone who'd done a newer engine swap. I haven't been able to score any of the local freebies this Fall including some that looked new. Did find 3 free mowers- 1 2stroke LB, ! 4 stroke LB w OHC, and Troybilt OHV. Let's see- Honda cammer, Maybe V twin. Ok, I'll check my valves.
 

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Discussion Starter #6
The thing runs great. after deeper surfing found b&s do have ACR. no tear down. heavy snow will be attacked by tracker. bobcat is lite or wet slush specialist.
 

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Discussion Starter #7
No more bogging. Tore it down last week and all looked great for 1980 engine. No ridge, little carbon, and a few tiny vertical scratches. polished valves and noticed minor pitting on exhaust. chucked in drillpres and cleaned up with whetstone. Of course as usual I should have checked clearance before tear down. Intake is fine but ex has none. Didn't remove much metal so seat must have worn(I hear they are soft). Ground the end for .008 and put together. Moved buried car to have something to plow. 6-8" of wet stuff that had solidified since falling. Went through fine with little slowdown compared to before. Engine sounds happy.
 

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I got tired of the unreliable carb function with my 5hp x 20" BobCat and swapped in a new OHV Briggs engine. This was a real + ..lot's more torque, a reliable idle, and super easy start.
 

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I guess so … moving from a 5HP to what, 8.5 HP or more, on a 20 inch bucket would surely make that snow fly like a rocket on steroids … :)
 
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