took my rear wheel out this morning to address a slow puncture issue but more worryingly the whole rear sprocket carrier assembly seems loose and rocks about. Bolts all seem tight and secure. Need some advice please. Pic attached.
Do you mean the drive pins on the back of the sprocket coupling which go into the wheel? Then yes it would seem so. Does that mean the rubber bushing sleeves are worn?
Just tried my carrier (pins) in the cush drives (wheel) and it is a tight fit, no play. Relatively easy to push in and out, but no axial play. This is new cush drives and pins that have done 13,500miles. Those pins in the picture look way worse than mine. Changing the pins is easy (not sure the cost), changing the cush drives is a sod of a job (£60 for a new set) - another option is a to buy a good wheel/sprocket set. You might pop it all back together and run it for more miles - not sure what the consequences would be - might be dangerous, might just create more chain wear?
Thanks for the reply Wolfram much appreciated. I want it to be mechanically safe and correct so will see how much it will cost to get done vs a replacement wheel.
You can inspect the Cush-drives in the wheel for wear or if the sleeves are loose or get an appropriate sized bar/socket if you need to 'pry' it a bit to check. They are usually as good as gold compared to later 748/996 equivalent.You do have more wear on the drive pins than usual, there shouldn't be a step below top/end diameter but nothing can 'go anywhere' when bolted up so as long as slack is not detectable on acceleration/braking (could check visually on paddock stand but hard to assess truly). Would have no qualms about using as is if no play in use. Worth a clean/de-rust and a smother with policemanslip.
So wheres the play? How old are the bushes? Theres a few sprocket carriers in ebay for little money. If its the bushes they are, as stated, a complete bas£&rd to change out. Price is accurate they are £10 each. The rubber does eventually break down but they last a looong time. If its the bushes then theres several different methods for removal we can share.
The rubbers look ok, the bike is 1995 and my guess is that these are original. Interestingly I've just dropped the wheel to local trusted bike mechanic for the slow puncture investigation, and showed him the movement and he said that's normal.
There's nothing special about the Ducati cush drive rubbers and there are many just like them fitted to other bikes - check these - don't know the sizes, I'm not saying these will fit, but an equivalent should be easy enough to find at non-Ducati prices Sprocket Rubber - As Honda 41241-222-000
Looking at the state of that carrier, those pins are f***ed and the cush drive rubbers will be as well....... What a pity you haven't thought of buying my bike with all the spares......There's a spare back wheel with good bushes; a set of hardly used OEM bushes (100 miles) and four more used but OEM bushes; plus a complete spare sprocket carrier....... ............and that goes with the bike with a decent set of bushes in the rear wheel and polished sprocket carrier with new bearings. But it's all under offer and may be gone soon.
The easiest way to get them out is to soak them overnight with WD40. Then get a socket which will allow the bush to be pulled into it; grab a long socket head bolt (8mm will do) with a thick washer under the head and pass it through the cush drive bush form the disc side of the wheel.......put the socket over the bolt at the other end with another thick big washer and the wind a nut onto the bolt............then keep winding (you will need to stick a socket bit into the head of the bolt to stop it turning as you tighten the nut)........Even if it doesn't want to move straight away, leave it under pressure for an hour.....
In the For Sale section.....the reasons are obvious if you go through the thread. If it gets sold this weekend, the new owner might sell off some of the spares.
If you are replacing the pins - you could go Titanium! Ducati titanium sprocket drive pins | Ti64 The 900SS pins are a simple thread, none of that left handed fiddly bit - have asked for a quote - just for fun These are them - from the same guy I just bought a hellishly expensive switch from (these are cheaper!) Ducati Rim Sprocket Adapter Bolts Monster 750 900 SS 900SL 851 888 ST2#099-1 | eBay