Need Engine Replacement Recommendation - Snowblower Forum : Snow Blower Forums
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post #1 of 33 Old 03-09-2015, 01:32 PM Thread Starter
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Need Engine Replacement Recommendation

Hello all, I have an older Ariens Sno-Thro that is in great condition with the exception it needs a new engine. It has a Tecumseh H70 130067 7hp engine that threw a valve.

Since they don't make these engines anymore and parts and rebuild kits are scarce I was hoping there is a replacement engine that i could get to put my Sno-Thro back in service.

Any suggestions or recommendations would be greatly appreciated.

Thanks in advance for your help

Phil
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post #2 of 33 Old 03-09-2015, 01:38 PM
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you can find new old stock of those engines. in small engine warehouses.

Long LIVE THE POWERSHIFT!! MAY IT NEVER RUST IN PEACE!!
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post #3 of 33 Old 03-09-2015, 01:38 PM
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get a predator 212cc from hft, 99 dollars with a coupon. use a sledgehammer to knock out the mounting studs in the frame and replace them with long bolts and locknuts. change the plug to an ngk bpr6es (oem is junk) and run at full throttle with no load for 6 hours on 5w-30 dyno oil. switch to a good synthetic after draining the oil such as royle purple 5w-30. rejet if neccesary
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post #4 of 33 Old 03-09-2015, 01:40 PM
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Threw a valve or the rod?


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post #5 of 33 Old 03-09-2015, 01:44 PM
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post a pic of what it looks like under the fuel tank
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post #6 of 33 Old 03-09-2015, 01:53 PM
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Is this a one shaft or two shaft engine? If one shaft a Predator would be great. Manual for the Predator states a 3 hr break in at no/low load. I would bring the throttle up a little many times during break in but not hi speed. Then Oil change to synthetic as pointed out above. The engine will be smoother and quieter than the old one.

The meltdown is under way ...
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91' Toro Powershift 824/Predator 301cc
05' Toro 3650/ 6.5 RTek
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post #7 of 33 Old 03-09-2015, 03:37 PM Thread Starter
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Hello all,

Classiccat, i guess i don't really know yet if it's a valve or a rod, I can rotate the engine about a third of the way before it locks up.

43128, here are the pictures you requested, i removed the electric starter to see if i could rotate the engine...

Pathfinder13, it's a single shaft engine...
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post #8 of 33 Old 03-09-2015, 03:49 PM Thread Starter
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If i go with the Predator can I mount the electric starter to it? any other considerations I should know about?
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post #9 of 33 Old 03-09-2015, 03:54 PM
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Getting another Tecumseh would be the easiest as it should just bolt in place and you'd be able to use the electric start.

The predator 212cc engine would be a cheap replacement but you would need to do a little fitting and might need new pulleys depending on the engine shafts dia. The 212 predator doesn't have provision for electric start if that's important to you.

Lot's of people are going with the Predator and are very happy with the results. You should look at some of those threads here.

.
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post #10 of 33 Old 03-09-2015, 04:42 PM
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that h70 should have a 3/4" crank so swapping in a predator should not be a big deal. You may have to relocate the mounting holes you may not. the original pulleys should fit without a problem. Electric start is really not necessary on the predator since they normally start on the first or second pull.
The predator really is a lot of bang for the buck at 99 dollars.
Just my 2 cents

Carl
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