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mbrook

Replacing KT with Briggs questions

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mbrook
I have a 7016 with a 16hp B&S engine. The tractor is very rough. I had planned on reparing and repainting it,then selling it with a tiller and blower to my brother. I also picked up a 7117 in very good condition, but the replacement KT19 blew a rod. I really wanted to rebuild this engine, but the more I read and look around at prices, it seems that it might not be worth the investment. I might be further ahead to take the 16hp Briggs and drop it into the 7117. Then part out the 7016, or at least what is worth parting out or just stash it in the back of the barn until time and money isn't an issue. My concerns are what has to be done to the 7117 before I can fire it up with the 16hp Briggs engine? Do I have to rewire the tractor? Will the drive shafts match up? Will the ignition need to be changed? Any advice and comments are appriciatted as always. Thanks

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Ronald Hribar
It will need some changes to wiring, some of it depends on what Briggs engine you have. S/G or independant starter/ alternator. The KT probably required a hot wire to coil, Briggs needs a shorting connection . The Driveshafts will line up, and you should have all the pieces to do so. This is a common conversion and there should be several members that can help you step by step. The 7016 should provide you with all the clues you need.

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PhanDad
Mark, I put a 16 HP single into a GTHL-17 several years back. Here's links to a couple of posts about it: http://www.simpletractors.com/club2/topic.asp?ARCHIVE=true&TOPIC_ID=20938&SearchTerms=gthl http://www.simpletractors.com/club2/topic.asp?ARCHIVE=true&TOPIC_ID=24432&SearchTerms=gthl It was fairly easy, engine bolted right in. The driveshaft lined up OK but was too short, my KT 17 used the rubber coupler and I got a used driveshaft that bolted right up using the rubber coupler. (There's also an even longer driveshaft that works that just uses the flex disks) Had to replace the ignition switch, move some of the leads around in the wiring harness connector so they went to the right places, and add a couple of new wires (based on an old wiring diagram and I didn't use the interlock relay). Biggest issue was finding a place to mount the voltage regulator since the 16 HP engine I used required a starter/generator (mounted the regulator under the gas tank). A ring gear starter engine would be much easier.

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PatRarick
I did that same conversion in a 917. I had to rewire and replace the ignition switch, but you should be able to use the wiring harness and ignition switch from the 7016 to simplify that part of the project. As to the voltage regulator, my 917 had the holes for mounting in the same location as in the 700/7000 series, which is under the dash right behind the battery. As Bill says, the driveshaft is too short. Not sure if the 7016 driveshaft would fit, but I'd look into it. In my case, I was doing this on a Sunday so I stumbled onto a way to make my own driveshaft using the KT-17 driveshaft adapter to properly position the flanges for welding onto a new shaft. I can elaborate if anyone needs or cares to know. It's pretty simple to do. I'll be making one probably this weekend for a Vanguard conversion in a 7018 so I can take photos of the process. Pat

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Chris727
I also did one of these conversions to my 17GTH-L (7117). I used a 16hp briggs with a S/G. I had previously had it in a 7013S Baron. I just took the wireloom out of the 7013 and put it in the newer tractor. I removed the neutral start switch from the 17GTH-L and mounted the voltage regulator there just as it was in my 7013.

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RayS
The driveshaft out of the 7016 will work but you will need the rubber compression coupling to get the lenght that you need or make spacers to make up the difference. I used the rubber compression coupling off of the KT engine when I put the 16 hp briggs in my 917H. I have the parts here if you need them.

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