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Engine Swap For 7117, Need Advice


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#1 brokenflutes OFFLINE  

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Posted October 14, 2014 - 09:00 AM

Getting ready to restore my 7117 but considering a larger motor.  The crowd seems to like the M20 for the job.  Is there much adaptation needed for this swap?  Any other suggestions on the swap.  The 17 runs very sweet but looking for a little more pulling power.DSCN1499.JPG


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#2 Talntedmrgreen OFFLINE  

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Posted October 14, 2014 - 09:44 AM

I believe there will be an ignition conversion to the tractor, but the footprint is the same.  I'm not sure if you need a different driveshaft adapter.  I want to say no.  I bought a Sovereign that someone had stuck an M20 in, and it flat-out rocked.  I've always like the Kohler opposed twins.



#3 boyscout862 OFFLINE  

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Posted October 14, 2014 - 09:47 AM

Give the 17 a good tune up and stay with it. If you want one with a bigger engine, find another with a blown engine. These GTs were designed by people that knew what they were doing. It looks beautiful the way it is. Leave it stock. Good Luck, Rick


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#4 VintageIronCollector OFFLINE  

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Posted October 14, 2014 - 03:26 PM

Getting ready to restore my 7117 but considering a larger motor.  The crowd seems to like the M20 for the job.  Is there much adaptation needed for this swap?  Any other suggestions on the swap.  The 17 runs very sweet but looking for a little more pulling power.attachicon.gifDSCN1499.JPG

If you take out the engine thats in it will it be up for grabs?



#5 Talntedmrgreen OFFLINE  

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Posted October 14, 2014 - 03:27 PM

You know, I read right past the part where it is stated the engine runs.  I have to agree with Rick, keep her maintained and run it!  I doubt you get enough snow in TN to notice the difference between a KT17 and an M20 (cuz blowin deep snow is about the only time when the M20 would pull away).  I have a 917H, and LOVE that KT17 in it.  Smooth, strong, starts, runs and sounds great.  She's my baby...well, one of them.  =]

 

20140510_175215.jpg


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#6 Bolens 1000 ONLINE  

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Posted October 14, 2014 - 03:31 PM

If your doing a "Restoration" wouldn't you want to have the original motor in there?



#7 mtoney OFFLINE  

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Posted October 14, 2014 - 04:38 PM

The only reason I would personaly ditch the KT17 if it was the series 1 version that didnt have the pressurized oil to the connecting rods.  If thats a series 2. I would run it till it needs overhauled, then rebuild it.  Mike






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