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What Model Engine Is This?

kohler briggs & stratton twin cylinder

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#1 Utah Smitty OFFLINE  

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Posted June 18, 2014 - 06:49 AM

A guy I know is a good source for equipment, tractor parts, etc.  He's done me several favors, so he asked me to help him identify an engine he took in trade on some work he did.

 

It's a flat twin, and at first glance (from the next room), I figured it was a Kohler K482, etc.  However, as I looked it over, I could tell it wasn't one of that series.  The starter is on the Left side as you face the flywheel.  There's no external governor and the exhaust goes from the cylinder ports directly into the pipes of a round muffler that sits above and to the rear of the engine.  The cylinders are bolted to the crankcase, and it has a 1.5" output shaft... yeah I know... HUGE!!

 

I'm fairly familiar with the Briggs and Kohler flat twins, (other than the KT series) but don't recognize this, and couldn't find a data tag or any numbers anywhere (other than a casting number on one of the cylinders).

 

Anyway, here's some pics.  I'm sure someone can tell me what it is.

 

IMG_20140616_161810_634.jpg

IMG_20140616_161849_050.jpg

 

Regards,

 

Smitty

 

 


Edited by Utah Smitty, June 18, 2014 - 08:53 AM.

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#2 trowel OFFLINE  

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Posted June 18, 2014 - 06:54 AM

Looks like Onan.



#3 bhts OFFLINE  

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Posted June 18, 2014 - 07:07 AM

It is a Kohler magnum


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#4 Utah Smitty OFFLINE  

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Posted June 18, 2014 - 07:47 AM

It is a Kohler magnum

Okay, I hadn't thought of the Kohler Magnums, and I have only seen one--installed in a JD317, so the crankshaft end was not visible.  Any way to tell how much HP it has if there is not sticker... apparently the guy he got it from removed to stickers when he "prettied up" the engine by painting it.

 

Smitty



#5 JDBrian OFFLINE  

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Posted June 18, 2014 - 11:13 AM

I think the magnums are very similar to the KT twins. That one has an unusual crank though. If you can find a Magnum service manual you may be able to narrow down the model.


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#6 diesel nut OFFLINE  

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Posted June 18, 2014 - 11:45 AM

The magnum twin and kt engines are almost identical.  They just changed the oil system and ignition and called it a magnum.  The tin work over the heads looks like it sticks out farther than the blower housing so I'm pretty sure its a 20 horse engine.   Hope this helps.      Stewart


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#7 glgrumpy ONLINE  

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Posted June 18, 2014 - 06:12 PM

Is big shaft and strong housing there. Could it be off a skid-steer or some heavy equipment?  Most gens have tapered shafts right? Kinda heavy output for one of those. How about a marine engine?  Gotta be reason for that heavy shaft.


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#8 LilysDad ONLINE  

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Posted June 18, 2014 - 06:23 PM

The magnum twin and kt engines are almost identical.  They just changed the oil system and ignition and called it a magnum.

So, is the Magnum the same as the KT series II?



#9 diesel nut OFFLINE  

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Posted June 18, 2014 - 06:58 PM

So, is the Magnum the same as the KT series II?


As far as I can tell most of the parts for the series II and the magnums are interchangeable. The biggest difference is the holes in the block for the points the lobe on the can to run the points, the location of the pressure relief valve on a kt and the bosses on the #1 cylinder for the magnum coil. I have an engine that I put together from a pile of parts that has a kt series II block, crank, cam, and flywheel with a magnum rods, pistons, cylinders, and heads and everything bolted together without having to modify anything. Stewart
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#10 Utah Smitty OFFLINE  

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Posted June 18, 2014 - 08:17 PM

The magnum twin and kt engines are almost identical.  They just changed the oil system and ignition and called it a magnum.  The tin work over the heads looks like it sticks out farther than the blower housing so I'm pretty sure its a 20 horse engine.   Hope this helps.      Stewart

Thanks, Stewart... that does help...

 

Smitty



#11 Utah Smitty OFFLINE  

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Posted June 18, 2014 - 08:18 PM

I think the magnums are very similar to the KT twins. That one has an unusual crank though. If you can find a Magnum service manual you may be able to narrow down the model.

I did find one on the Kohler site... I'll check if there's one here in the manuals section--I'll download it if there isn't.

 

Smitty



#12 Utah Smitty OFFLINE  

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Posted June 18, 2014 - 08:19 PM

Is big shaft and strong housing there. Could it be off a skid-steer or some heavy equipment?  Most gens have tapered shafts right? Kinda heavy output for one of those. How about a marine engine?  Gotta be reason for that heavy shaft.

Yeah, that's the first time I've seen a 1 1/2" shaft... Thanks for the info.

 

Smitty



#13 JDBrian OFFLINE  

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Posted June 19, 2014 - 05:32 AM

One issue for a re power would be the extra length of the engine due to what looks like a bearing housing on the back.  That big shaft could be machined down to take a U joint.







Also tagged with one or more of these keywords: kohler, briggs & stratton, twin cylinder

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