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Old 04-29-2015, 08:55 PM
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Roy Najecki Roy Najecki is offline
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Location: Rhode Island
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Default Rebuild Magnum vs new B&S Vanguard

The Kohler Magnum 18HP Series II in my 782 is burning lots of oil and loosing power. It has gotten to the point that I really can't use the tractor. So I think I have two options: get a rebuilt Magnum long block from Kustom Small Engine or get a B&S Vanguard from Small Engine Warehouse. Either way the cost is about $1,500.

With the rebuilt everything should fit as before, and the Vanguard is advertised to fit but "some adapting during installation should be expected" which I presume to mean potential problems with the drive shaft. Supposedly the Vanguard is a cleaner running engine and more fuel efficient. Conversely the Magnum is supposed to have more torque due to the opposed cylinders.

Any suggestions or experience on a 782 repower?
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Old 04-29-2015, 09:04 PM
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jimbob200521 jimbob200521 is offline
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Quote:
Originally Posted by Roy Najecki View Post
The Kohler Magnum 18HP Series II in my 782 is burning lots of oil and loosing power. It has gotten to the point that I really can't use the tractor. So I think I have two options: get a rebuilt Magnum long block from Kustom Small Engine or get a B&S Vanguard from Small Engine Warehouse. Either way the cost is about $1,500.

With the rebuilt everything should fit as before, and the Vanguard is advertised to fit but "some adapting during installation should be expected" which I presume to mean potential problems with the drive shaft. Supposedly the Vanguard is a cleaner running engine and more fuel efficient. Conversely the Magnum is supposed to have more torque due to the opposed cylinders.

Any suggestions or experience on a 782 repower?
There is no such thing as a Magnum Series II.

As for suggestions, keep an eye out for used Mag's. If that isn't an option, then repower via a short block isn't a bad idea. I'd actually, if it were me, keep an eye out for a used Command as they are solid engines. A little fab would be needed but it'd be worth it.

FWIW I'd go Kohler Mag or Command over Breaks and Scrapiron. Ahem, sorry; Biggs and Stratton.
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Old 04-30-2015, 06:57 PM
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Roy Najecki Roy Najecki is offline
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Good catch on the Magnum Series II. I got confused between my 682 with a Series I and my 782 with the Magnum. On the engines group postings there is a discussion on the HF V-Twin engines (a Honda clone) which would be half the cost of a rebuild. But Harbor Freight doesn't quite have a reputation for high quality.
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