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#1
11-06-2015, 12:15 PM
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1641 PTO Clutch help
Bearings seized on PTO clutch. Ordered factory part called for, 917-3389 (got Stens 255347). Here's the issue:
Bad one has a slotted tab that fits over a shouldered stud for anti-rotation. Bad one is about 3" deep. There is a 5/8" sleeve bushing spacer behind it that is inward chamfered at engine side. Bad one is a Stens 255431/Warner 521829. New one is WAY different. Is 3.5" deep with no anti-rotation tab. From what I've found, looks like uses a "torque bracket" for the anti-rotation. Assume my (used) tractor been retrofitted? Are there threaded bosses on engine for this bracket? Can I make one out of a piece of angle? Don't I need a spacer bushing between engine and clutch? The old one is way too wide, would make depth over 4". Also, since the engine shaft is only 3" long, does the mounting bolt/washer pinch the clutch to the shaft? Any help is much appreciated. 
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#2
11-06-2015, 12:42 PM
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I would just put new bearings the the old clutch and drive on.
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#3
11-06-2015, 04:04 PM
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717-3375 Clutch, PTO | CVX Style; (Tractors with serial no. 821,060 thru 851,000)
717-3389 Clutch, PTO | CMS Style; (Tractors with serial no. 851,001 & Above) __________________________________________________ _____________717-3446 CLUTCH ASSY-PTO used on tractors like a 2180 My guess is that someone replaced the clutch with a later style like what goes on a 2180 along with a lot of others. Tip for you when you're looking to buy parts is to Google " Cub Cadet part number" like in this case Cub Cadet 717-3446. Here are pics of the 2 styles. I've been using the clutch's made by these guys lately. https://xtremeope.com/ As Mike mentioned it's not a big deal to replace the bearings. Here is a thread on how to do it. http://www.onlycubcadets.net/forum/s...ad.php?t=24413
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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#5
11-07-2015, 12:35 PM
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Wouldn't have a problem replacing the bearings except its a little late now - already have the new/different clutch. Restocking fee same as cost of new bearings, plus extra S&H, so kind of stuck with new clutch. Found a parts diagram for the 2160 that shows both clutch types and looks like same sleeve spacer used on both setups, at least on the 2160. Anyone know for sure that that is the case? If so, new assembly would be at least 1/2" deeper than previous. Alignment issue with blade drive belt pulleys?
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#6
11-07-2015, 01:03 PM
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You should be able to use the same spacer ( 711-3179 spacer) but you'll need the torque bracket (703-1986A BRACKET-TORQUE). It bolts to the front of the engine under the muffler. The 2165 uses they same clutch that you bought. The parts are still available. Link to the Cub Parts site.
http://www.cubcadet.com/equipment/AR...0-A/0039100013
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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#7
11-07-2015, 02:13 PM
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sedmo
I have a 1641 that I built out of spare parts. I put a Haban Sickle bar mower on it. Anyway I needed an odd ball clutch because of the small pulley size to make it work so I put one together out of parts I had laying around. I needed to come up with an anti rotation device. I made it out of a couple spacers that bolt to the front of the engine in the same place that the torque bracket bolts to. The factory torque bracket is a POS, I've seen them fail and make a mess. Maybe you can do something like what I did for your clutch. Here is a pic.
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
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