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#1
10-01-2014, 12:25 AM
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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)
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Patience is the key to success  . The difficult, I'll do today . The impossible, I'll do tomorrow
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#3
10-01-2014, 01:07 AM
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Quote:
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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Patience is the key to success . The difficult, I'll do today . The impossible, I'll do tomorrow
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#4
10-01-2014, 07:44 AM
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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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Stanton 1980 IH 782, Kohler M18 IH #1 Cart, original IH 42" Blade, modified to 50" and hydraulic 2015 XT2, Kawasaki 23 HP
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#5
10-01-2014, 01:05 PM
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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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Randy Cubs: 71, 72, 127, 149, 1440, 2186 and 1864 John Deere 110 round fender John Deere 140 H3 Sears: GTV16
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#8
10-02-2014, 12:30 AM
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Looks great! Amazing that the crank and head was fine. My k301 the crank looked fine I should have miced it my self before I took it in. They said it needed to be turned .10 under and the head need to be planed so they did. I told them to check it and if it needed it do it so they did. They also bored it .20 over. Looks lie a new one! Seeing yours inspires me to he mine done! You did a great job!
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Brian April 1979 1200 Quietline 44A deck 1988 1211 customized into a 1288 with a K301AQS 38C deck and a 1864 54” deck . Snow blades 42" and 54" . Brinly disk, brinly plow a cultivator and a $5 brinly yard rake! 
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#9
10-03-2014, 12:05 AM
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Thanks for all the comments.
 It was well worth the time, work and choice words put into this project. I fired this engine up today and J-Mech was right,  it fired right up and runs smooth as silk. I'm going to be very happy with it. Here's pics of my engine test setup. Now, off to the rest of the machine to get it ready to install the engine.
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Patience is the key to success . The difficult, I'll do today . The impossible, I'll do tomorrow
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