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Kensico


Joined: Feb 15, 2014
Points: 6

Engine swap
Original Message   Feb 8, 2015 9:11 am
Hello all. Was thinking of doing an engine swap on my snowblower. I see some on Ebay and other sites that sell engines that don't have the throttle control or fuel shutoff( that would be an easy fix) but was wondering if this would be ok for a snowblower to have the engine at a fixed speed? Thanks Kensico
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RedOctobyr


Location: Lowell area, MA
Joined: Nov 5, 2011
Points: 282

Re: Engine swap
Reply #1   Feb 8, 2015 11:29 am
I think a fixed RPM is OK for a 2-stage snowblower, which doesn't have a centrifugal clutch (unlike a single-stage).

You'll want to find something with matching output shaft size, and height, as well as matching mounting holes. I had an MTD with a Tecumseh, which had a second output shaft on the engine, to drive the transmission. Make sure you only need a single output. Also, snow-duty engines typically don't have air filters (they are not operated in dusty environments, and filters can clog/ice up), and instead have a heater box around the carburetor, which uses the heat from the exhaust to keep the carb from icing up.

So if you go with a summer engine, you may need to fabricate a heater box, and remove the air filter.
aa335


Joined: Nov 29, 2008
Points: 2434

Re: Engine swap
Reply #2   Feb 8, 2015 12:42 pm
RedOctobyr wrote:
I think a fixed RPM is OK for a 2-stage snowblower, which doesn't have a centrifugal clutch (unlike a single-stage).


I haven't seen one with a centriffugal clutch.  Most single stage uses a movable idler pulley to tighten up the belt  to deliver power to the auger.
RedOctobyr


Location: Lowell area, MA
Joined: Nov 5, 2011
Points: 282

Re: Engine swap
Reply #3   Feb 8, 2015 1:26 pm
Oops, you're right I've even had single-stage machines, and simply had brain-blank. I guess I was thinking of when I "boratified" one of my SS, so it also revved up when I squeezed the handle. Sorry about that.
Kensico


Joined: Feb 15, 2014
Points: 6

Re: Engine swap
Reply #4   Feb 8, 2015 2:08 pm
Thnx,I found a tecumseh that should match for $179 it has a 3/4" keyed single shaft like mine 10 hp brand new
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