Kenneth

Just an up-date for general knowledge.  This past week-end we had several inches of snow, that was rained on over-night, and turned to thick slush.  Colder weather and the forcast of blizzard conditions made an immediate need to clean what was already down.  The new old Ariens went thru the slush very well,  and the next day the 9 inches of new snow was gone in no time.  I can't tell you how happy I am to have the old (new) Ariens really back in service.  The old machines were built for the ages.

I just replaced my old 7 hp for a new 8hp basically same crank shaft, so no need to replace pulleys.  The only adjustment I had to make, was move engine back about 1.5", and saw off mounting bolts.  There was no need to drill new holes, they were already there probably for the next engine up originally.  I repaced the two belts , and actually for never doing this it was pretty easy and rewarding.  Now I'm ready for winter and don't have to mess around in the cold snow.  Thanks again for eveyone's in-put it was really helpful and appreciated.

I just tracked down a  8hp Tecumseh, that is supposed to be the closest match for replacing my circa 1974 7hp.  I'm replacing the two belts and feel pretty confident that this is the solution.    Thanks for eveyone's advice .

Thanks for your help Denis.  I'm checking now with seller to make sure the c/s is right size.  I was wondering, the c/s length  is how important?  As long as I either move engine back or front to match gears, then bolt down-right?  This is the reason I'm having hard time to match.  If I have to I'll drill new mounting holes and bolt it down  the engine.  As long as I don't  go crazy and over-power I should be OK right?

I have an old Ariens 7 HP snowthrower with a blown engine.  The model#924038, with the engine H70-13021OD. My problem is trying to find a replacement engine.  Ariens had Tecumseh e-mail me that the old engine is unavailable but an 8HP #208102A would be a good replacement.  The only trouble is no on-line is familiar with this part.  The engine has a 1" c/s with 2 13/32" length.  I really don't want to spend  a lot of money to replace an engine for probably an over 20 yr old snowthrower, but when it threw snow it went thru anything.  Can anyone suggest a replacement engine any brand ?