Brass Bushing on CC 1772 Diesel Driveshaft

Mon Feb 17, 2014 11:31 pm

Ok....as previously noted in my last CC 1772 post, after changing the alternator belt, I noticed there was a brass (or bronze) bushing that almost fell out while trying to re-install the driveshaft to the engine. Without much luck from a Cub Cadet dealer or the internet parts diagrams; I decided to remove the entire driveshaft to get a closer look and so I could take some pictures to hopefully get some help on the forum. In these pictures you can see the worn out bushing and where it fits. It fits inside that round rubber type disk.....that is where it fell out of at least. I am thinking that the bushing is part of that rubber disk housing as 1 unit, but I am not sure about that. What do you all think? Also, notice the fins on the plastic fan; they are buggered up a little....will that be ok to leave as-is? I need to get the parts ordered so I can get the 1772 back up and running.

Thanks for any input you can give
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Re: Brass Bushing on CC 1772 Diesel Driveshaft

Mon Feb 17, 2014 11:33 pm

more pictures....
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Re: Brass Bushing on CC 1772 Diesel Driveshaft

Tue Feb 18, 2014 6:28 am

Yes, you need the brass ball and the fins should be ok unless you just want to change them. JMHO. I have not ever changed the fins. If you do not read the, http://www.onlycubcadets.net, forum you should and post these comment on there. The have lots of help on there and sources for parts.

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Tue Feb 18, 2014 9:29 am

Thanks randallc, I will check over there on that site. Yes, it's clear I need that brass bushing, but I can't seem to find it in the parts breakdown online. That is why I am thinking it is part of the round rubber disk assembly.

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Wed Feb 19, 2014 7:13 am

It may be, but ask the question on OCC forum and someone will know. It appears to be part of an assy. but there are also parts sellers and salvage folks on there. http://www.partstree.com/parts/?lc=cub_ ... 0029400011

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Wed Feb 19, 2014 11:02 am

I have gotten some help over there but still not sure which way I'm going to tackle the job since they have mentioned several options. Thank you so much for directing me to that site. Yeah, from the diagram you posted (the one I had looked at too), you can see that they list a bushing for the rear part of the shaft but not the front. I found out over there that it is part of the metal plate that mounts near the rag joints. They are trying to talk me into fabbing up a new driveshaft for the 1772 as an upgrade but said I could always repair the old one and keep it factory. I don't know what I am going to do as of now, as I am not into fabbing up anything so that scares me a little, but I do know I want it to be reliable and work well. Any help, tips, suggestions from you guys would be welcome also.

Thanks again!

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Wed Feb 19, 2014 2:03 pm

just a thought but the rubber part looks just like a common"rag joint" for the steering box to steering column connections that many cars and trucks used for years, they are cheap at the parts store, bushing could be made easy on a lathe

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Wed Feb 19, 2014 3:23 pm

Tim.....yes that is called a rag joint. The Cub Cadet guys are trying to convince me to convert it over to another driveshaft that doesn't use the rag joints and it is supposed to be better. Not decided which way I will go yet as i don't know if I feel comfortable building a "new" driveshaft.

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Mon Feb 24, 2014 9:12 am

That bushing is nothing special. Go to your local Lowes or Ace hardware and go through the bolt drawers until you find the bronze bushings. I'd take the drive shaft and coupler with you and sit there fitting them together until you get one that works. You might have to buy a bushing and drill out the middle, or buy two bushings that slide inside one another, then drill one out to make it work. You may also have to buy a bigger diameter bushing then file the outside down to take up for the wear that has occurred during the 30 years of use. You can put the bushing on a bolt, tighten it down with a nut, then chuck the bolt into a drill press then use a hand file to dress the bushing down to the right outside diameter. Also, if the bushings they sell are too long, you can easily trim them down with a hack saw or angle grinder, then just file off the burred edges.

Regardless, there's nothing special about the original bushing. If you want to get one that fits perfect, go to www.mcmastercarr.com and use some calipers to find out the exact dimensions you need. They sell any and every kind of bushing you could ever want. Chances are, as mentioned above, due to the wear from 30-years of use, you're likely going to have to buy a thicker bushing and drill to fit perfect.

The fins on there are fine to re-use. More important than the fins, is to make sure the hydro pump and rear differential are clean and free of the grease/oil/grass/dirt build-up that commonly occurs on them. I'd pressure wash it out while you've got it opened up.

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Sun Mar 02, 2014 10:40 pm

Thank you for the input and tips! Very helpful. One question......is that bushing supposed to be a standalone part or was it originally part of that round flange?

Re: Brass Bushing on CC 1772 Diesel Driveshaft

Mon Mar 03, 2014 8:57 am

It may have been pressed into the flange, but it was a separate piece. If it was flopping around in there for a long time, chances are that the flange is worn a bit. You might have to use some JB-Weld on the new bushing to take up some of the slop, but I wouldn't be too worried about it. It's not a "precision" piece, just a wear part. If it's off a little bit, you'll never know, especially with that Kubota engine up front clattering around! I'd do my best to make everything as tight as you can get it, but the bushing is really just protection the drive shaft from getting worn out, and allowing a little bit of movement between the drive shaft and the coupler without wearing out the coupler.