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  #1  
Old 10-01-2014, 12:25 AM
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darryljs darryljs is offline
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Default K301 make over (pics)

Bought a 105 on Ebay a couple months ago. I only went for the 105, but the fella said "on your way out you can have that 12hp engine laying in the stickers over there, it's froze up and I'll junk it anyway". I says OK and threw it on the trailer. Then he says "You can have that 125 frame in the weeds", so we threw that on the trailer too. I tore the engine down( it sure was ugly) and put some work in it. I had to get it bored .030 over to get the rust out, (but it looks pretty now). New piston, rings and connecting rod. I had the crank miced and it was fine. The key-way for the PTO side was worn bad, so I had another key-way cut 180 deg.(wanted about $300 to fix old key-way). New valves, seats and guides. Head was flat and block is good. New plug, points, points pin and rebuilt the carburetor and fuel bowl shut off. New muffler and made my own exhaust ell (hated to pay that kind of money to buy one). What i used is a Wagner Steel Bent Elbow, 1" Schedule 40 Pipe, 1" Inside Radius, 90 Degree, 2" Tangents($9.39). I cut 1" off one end and threaded it, then cut 3/4" off the other end (fits great). Cleaned, primed and Painted all parts and the block (not the head). I followed J-Mech's method to time it and I'm going to try to fire it,tomorrow. OK, enough chatter, on to the pics (we love pics)
Attached Images
File Type: jpg 125EngineOldA.jpg (66.0 KB, 587 views)
File Type: jpg 125EngineOldB.jpg (68.1 KB, 580 views)
File Type: jpg 125EngineBored_A.jpg (57.7 KB, 580 views)
File Type: jpg 125EngineBoredB.jpg (67.3 KB, 578 views)
File Type: jpg MufflersuportfixC.jpg (69.7 KB, 578 views)
File Type: jpg MufflersuportfixD.jpg (27.8 KB, 578 views)
File Type: jpg 125EngineOldF.jpg (64.1 KB, 577 views)
File Type: jpg 125EngineNewAF.jpg (42.0 KB, 578 views)
File Type: jpg 125EngineNewI.jpg (54.8 KB, 579 views)
File Type: jpg 125EngineNewAI.jpg (72.5 KB, 579 views)
File Type: jpg 125EngineOldI.jpg (69.5 KB, 577 views)
File Type: jpg 125EngineNewAH.jpg (46.1 KB, 579 views)
File Type: jpg 125EngineNewH.jpg (64.6 KB, 578 views)
File Type: jpg 125EngineOldH.jpg (63.4 KB, 577 views)
File Type: jpg 125EngineOldG.jpg (63.2 KB, 580 views)
File Type: jpg 125EngineNewG.jpg (55.9 KB, 577 views)
File Type: jpg 125EngineNewF.jpg (56.3 KB, 579 views)
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  #2  
Old 10-01-2014, 12:30 AM
J-Mech J-Mech is offline
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WOW! Looks great!! I bet it fires right off!! Nice work!

Was the rust just in the top end? Or did it make it's way into the lower half of the block?
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  #3  
Old 10-01-2014, 01:07 AM
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darryljs darryljs is offline
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Quote:
Originally Posted by J-Mech View Post
WOW! Looks great!! I bet it fires right off!! Nice work!

Was the rust just in the top end? Or did it make it's way into the lower half of the block?
Thanks Jonathan. I got a lot of info from your posts about these engines. I hope it does fire right up.

I got lucky, the rust was only in the top third of the bore, the bottom was clean and still had oil (black as coal) and no water. I only know that it was sitting in the field for several years. The intake valve was open and the air cleaner cover was missing. It was laying with the carb up, so it filled with water. The machinist I use sees a lot of these Kohlers and he told me he took all he could with the .030, but all the rust came out.
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  #4  
Old 10-01-2014, 07:44 AM
SGragg SGragg is offline
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Don't ya love it when the seller says, "You might as well take that there, and this thing over here"? Everybody likes more!

Congrats on the rebuild. You did a bang-up job and if she doesn't fire the first time, I have no doubt you'll get 'er to fire up soon!!
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  #5  
Old 10-01-2014, 01:05 PM
rwairforce rwairforce is offline
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Wow!
Looks fantastic. If it runs half as good as it looks you'll have a good engine.
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  #6  
Old 10-01-2014, 07:22 PM
rickx rickx is offline
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Great find, and Excellent work! I can hear it running already.
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  #7  
Old 02-27-2015, 12:43 PM
NCDiesel NCDiesel is offline
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Quote:
Originally Posted by darryljs View Post
Bought a 105 on Ebay a couple months ago. I only went for the 105, but the fella said "on your way out you can have that 12hp engine laying in the stickers over there, it's froze up and I'll junk it anyway". I says OK and threw it on the trailer. ...snip...
Whose paint did you use? Spray can or paint gun? The paint job looks really nice.

Thanks in advance!
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  #8  
Old 02-27-2015, 10:25 PM
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darryljs darryljs is offline
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Whose paint did you use? Spray can or paint gun? The paint job looks really nice.

Thanks in advance!
The paint I used was from TSC. It is Cub Cadet Yellow made by Majic in a spray can. I don't know if they still make it.
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