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post #1 of 28 Old 10-26-2019, 10:38 PM Thread Starter
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New Engine JD 1032

OK, bolted up a new harbor freight 13 hp to my old JD 1032. First issue is the crankshaft size on the old motor was 3/4" new engine is 1"where can I find replacement pulleys, small od is 2 5/8", larger front is 2 7/8"?
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post #2 of 28 Old 10-27-2019, 09:19 AM
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Garage
I and many others on here have the same machine, JD 1032. Please keep us informed of the progress especially pulley size and belt size! to make our change over smoother when the engine blows. The Real JD 1032 is too good a machine to discard, cast iron gearbox, you will never find impeller blades as thick as on the 1032, the housing, has rods no cables, the easiest fastest replacement of a friction disk on the market. Thanks.

1986 Ariens ST522, 5hp, 22"
1995 Murray Craftsman 10hp, 29" w. 12" impeller
A 1983 Real John Deere 10hp, 32" w. 12" impeller, 16" auger, 20" high front, cast iron gear box, chains
Noma 9hp, 27" w. 12" impeller
Noma 5hp, 24" w. 12" impeller, 20" high front
Gravely Convertible, 12hp Kohler cast iron, 26" width, 600 lbs of cast iron & steel, 2 speed impeller, 4 ground speeds
Dynamark 8hp, 26", 12" impeller, for sale
Several other 5hp, 8hp, several 2 cycle, all for sale

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post #3 of 28 Old 10-27-2019, 09:38 AM
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Tractor Supply Carries a Good Assortment of Pulleys. OR-Bring the Original pulleys to a machine shop, and have them Punched Out to 1".
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post #4 of 28 Old 10-27-2019, 01:28 PM Thread Starter
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I found a 2.45" (original 2 5/8") & 2.75 (original 2 7/8") TB woods on amazon, going to give them a try, both are a little smaller than my original, but I have been following a rebuild on YouTube and that guy mounted a 16 hp, larger pulleys and ended up needing to reinforce the shoot due to warping it out of shape due to all the thrust, I have no need for that. The shaft on the new motor is also a bit taller, 5.250" compared to original 4.50" from mounting deck to output shaft center so the belt guard will also need to be modified. Rather than fab a new one, I plan to remove material at the top of the original guard and and recover with some sheet metal. May not be too pretty, but I just want to blow snow, just my driveway! I am also installing an impeller kit, I tried to fab some out of plastic bondo spreaders, didn't last. Can't find old truck mud flaps so will just order a kit.

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post #5 of 28 Old 10-27-2019, 05:40 PM Thread Starter
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Tractor Supply Carries a Good Assortment of Pulleys. OR-Bring the Original pulleys to a machine shop, and have them Punched Out to 1".
Thanks for the suggestion, I went to Tractor Supply on line and looked at their pulley's, couldn't find pulleys that close with the 1" bore, if my new pulleys don't do the job I may end up getting the old one bored or drilled. Also, the 1/4" means the key slot will need to be redone, I don't have access to a machine shop where I live, suggestions appreciated.

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post #6 of 28 Old 10-28-2019, 11:40 AM
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I just created an account to do the exact same thing as you. I also have a Deere 1032D that I'm repowering with a 13hp 420cc predator. What did you/are you doing for mounting the engine? The bolting pattern is different and so is the distance from the crank about to the bolting pattern. If I make an adapter plate that would make the height difference even worse. I was going to go slightly bigger on the upper pulley, but didn't think about warping the chute. Maybe the only using the 13hp vs a 16hp would be enough difference.
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post #7 of 28 Old 10-28-2019, 02:13 PM Thread Starter
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I just created an account to do the exact same thing as you. I also have a Deere 1032D that I'm repowering with a 13hp 420cc predator. What did you/are you doing for mounting the engine? The bolting pattern is different and so is the distance from the crank about to the bolting pattern. If I make an adapter plate that would make the height difference even worse. I was going to go slightly bigger on the upper pulley, but didn't think about warping the chute. Maybe the only using the 13hp vs a 16hp would be enough difference.
I just drilled the top plate for the new bolt pattern. YouTube the guy positioned the motor, dipped a bolt in yellow paint and inserted into mounting holes, punched and drilled.

Here is the link

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post #8 of 28 Old 10-29-2019, 06:45 AM
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Originally Posted by Thetruck454 View Post
I just created an account to do the exact same thing as you. I also have a Deere 1032D that I'm repowering with a 13hp 420cc predator. What did you/are you doing for mounting the engine? The bolting pattern is different and so is the distance from the crank about to the bolting pattern. If I make an adapter plate that would make the height difference even worse. I was going to go slightly bigger on the upper pulley, but didn't think about warping the chute. Maybe the only using the 13hp vs a 16hp would be enough difference.
I just drilled the top plate for the new bolt pattern. YouTube the guy positioned the motor, dipped a bolt in yellow paint and inserted into mounting holes, punched and drilled.

Here is the link
Ok, thanks. I'm surprised he didn't talk more about aligning the pullies before drilling the holes. I'd assume alignment is pretty crucial to not ruining/throwing belts.
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post #9 of 28 Old 10-31-2019, 02:09 PM Thread Starter
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Ok, thanks. I'm surprised he didn't talk more about aligning the pullies before drilling the holes. I'd assume alignment is pretty crucial to not ruining/throwing belts.
I don't think this is like high tolerance engineering, I made sure the engine is square on the top plate, if it is square, I trust the original JD auger, drive pulley's and tenshioners are adequately aligned to that. I just ordered some 38 inch belts (stock is 36 +/- I think) and will see if that's correct due to the higher shaft, stock belts won't work. Don't forget you have horizontal adjustment (pulley placement) when mounting the pulley. I am still short one pulley, that's due to arrive next Wednesday, gives me a chance to see if the belts will work which arrive on Monday. For belts, an A36 has an OC of 38".

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post #10 of 28 Old 11-05-2019, 08:00 PM Thread Starter
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Made some progress, will fire it up tomorrow. Current set up rear pulley TB Woods AK 241 OD 2.45", front pulley Gates BK28 OD 2.95". Belts, rear A37 39" OD, front belt A36 38" OD. Still to do impeller kit, Modify the belt guard, modify the chute adjustment mounting, doesn't quite clear the engine in its original location, it looks it will clear if mounted closer to the left handle.
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Last edited by Ruidoso Bill; 11-05-2019 at 08:18 PM.
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