The CVT nut from hell: Air Impact Wrench advice

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I gave up trying to work on it at home. I went to work (fire sprinkler company). I also made my shim at work. I used a piece of 2" schedule 40 sprinkler pipe. I put the pulley in a chain vise. I used three C-clamps to compress the spring and the nut almost came off by hand. It is still difficult to put back together. I had to keep the clutch assembly aligned with the shaft while trying to tighten the three clamps equally. Once I got the clutch back onto the shaft, the nut went on by hand. It would help to have a second person to deal with the clamps.

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Just to be clear, this thread was about the Variator side of the CVT. I don't want anyone to get confused and start using c-clamps on the Variator/roller side as that doesn't usually end well. Many broken fins out there!

-S

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Okay. For the variator nut, I used a pair of channel locks on the gear behind the variator and rollers. While holding the gear, the variator nut came off easy. I assumed that the gear was for the kick starter, but they left it there for a spacer.

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Started with 3/8" 275 ft lb craftsman for $ 39. Would not work. Sears you can return broken stuff.
500 ft lb 1/2" Craftsman $89 worked in seconds both clutch (1 1/2" socket) and variator (can't remember size) compressor set to 110 psi

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I have one of the same air rachets. I always have my air compressor pressure maxed out. (>110psi) This rachet took the nuts off fine for me. I would recommend however to use an impact socket, due to the fact if the regular socket starts to "round" the edge of the nut your screwed. (I think thats a technical term)

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just put my face buster spring in. had to buy a 6-point 1.5 inch socket and the nut came off fine.

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want to thank all for this great thread after trying to get the nut off my variator with my impact wrench and smallish compressor for over an hour took the advice of others and went to a friends garage and ten minutes later nut off no prob. changed the rollers to 9 gr. and replaced the torque spring, great mods the carter talon will now do a nice donut can't wait to get back to Ocala to see how it does on the hills, also changed the rollers on the GK-06 to the 15g nice improvment but still not where I would like it to be. thinking about trying the shim today tho my wife is starting to think I'm crazy spending all weekend in the garage.
anybody tried lighter rollers for the 250, the lightest stu had were the 15gr, whose service is ecxellent next day parts delivery for me as I am right down the road thanks all I will keep reading and learn as much as possible Love tinkering on these things

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After hitting hard times and being without my big compressor.And the other Im converting to a pump gas setup.Being that of a tiff mower upright briggs engine.Its not done so what did I do! I made a cool handy tool! With as always help from my millermatic 135 mig unit.I simply looked at what needs held and what needs clear and used 1/2 inch solid rod.You can buy it at any home depot.Then cut along enough piece for the main handle and body.With two fingers coming out about two inch one at the end and the other away and so that both fit into a hole in the shell from turning hell! Now with only two fingers its not supported enough to hold.So I added a third in about center and as the other two come straight out this one comes at an angle from 30 to 40 degrees.And its about half again as long.So three inch.I also made it so that all three fingers are all rested up against the shell and so you have to angle it just to get it in to even lightly tap it in.But it holds!! Then using just a wrench mines off! So what do you guys do that havent any welder? You can ether find a local welder or tell me and show me what your clutch looks like from the shell.And I will weld you one up and ship it right after I get the 15.00 from you! Thats just enough to cover the shipping and my materials.With about four bucks if Im lucky for my pocket.

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thats a good idea Idea

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Here's another way of getting the clutch and variator nuts off. It worked well for me. The chain vise grip sells for about 30 bucks at some hardware stores, I got mine at a swap meet though.