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| Sprocket Alignment *IMPORTANT* http://www.ducatipaso.org/forum/viewtopic.php?f=1&t=990 |
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| Author: | delagem [ Sun Apr 02, 2006 1:30 pm ] |
| Post subject: | Sprocket Alignment *IMPORTANT* |
| Author: | Finnpaso [ Sun Apr 02, 2006 3:43 pm ] |
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| Author: | delagem [ Sat Apr 08, 2006 3:00 am ] |
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Here's a pic of how I did the sprocket alignment check prior to fitting my new chain and sprockets. It is easier to do if the chain is off, but if you rivet the chain like I do, you can derail the chain and hang it up out of the way using safety wire or something. As a side note, I was talking to a Ducati dealer about getting sprockets and he said "good luck", took him almost 3 months to get a set. However, I called Sprocket Specialists, and even though they were special order, I got them in about 2 weeks. |
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| Author: | jcslocum [ Sat Apr 08, 2006 1:56 pm ] |
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Mike, Looks like you have it sorted. Did you measure from the side of the side of the rear sprocket as shown in the picture or up higher where the chain actually runs? |
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| Author: | delagem [ Sat Apr 08, 2006 2:16 pm ] |
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I measured as shown in the photo, which does put in a 1mm error, but close enough for the accuracy I need. I did finally get the eccentric apart, and the problem was my inability to look at a parts blow-up and think, not that the parts were all that frozen. My eccentric is keyed and splined, not just splined, so that wasn't my problem. I thought I was going to have to add a post on the "Lowering My Paso" to warn about sprocket interference with the chain guard, but when it was all assembled my 42 tooth sprocket just barely fits. But I don't think a 43 would... Here's a pic of my new chain and sprockets, isn't it pretty? I run these DID520ERV2 and 3 chains on everything I own, and just for laughs, I measured the difference in length between a brand new chain and one that's 10 years old (on the 900ss that I'm restoring), not even 1/16" stretch on a decade old chain... |
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| Author: | spaz [ Tue May 02, 2006 1:53 am ] |
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As the owner of an 87 Paso 750, I also am very unhappy with Ducati concerning misalignment between the countershaft sprocket and the rear wheel. I probably changed the rear bearings at least 10 times, 2 front sprockets and ended up tearing up the output shaft bearing. All this time taking my Duc in for service and buying parts (bearings, sprockets and chain) and never being told there was a common problem concerning this. Fast-forward 17 yrs (thats how long the Duc has been in storage), 4 kids, a few jobs and numerous times I was going to put it back under me the time has finally come. Now the problem I have is none of the parts needed are available. So if anyone has any suggestions, or a bottom end I could purchase please reply. |
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| Author: | Ducaddicted [ Tue May 02, 2006 8:36 pm ] |
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| Author: | Finnpaso [ Wed May 03, 2006 6:45 pm ] |
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| Author: | delagem [ Thu May 04, 2006 2:34 am ] |
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O ring or X ring doesn't really matter; just don't buy a cheap chain! I hadn't heard about changes to the gearbox, other than the varying thickness locking plate. That part isn't even produced anymore, but shimming the sprocket is easier still. I wasn't aware of various sprockets available for Pasos either, and neither is Sprocket Specialists. They only offer the front in 14 or 15 tooth, and rears are special order, regardless of size. Guess they don't get many orders in anymore! |
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| Author: | Finnpaso [ Thu May 04, 2006 4:29 pm ] |
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I have never heard different front sprockets offsets to 750 Paso, only that one. Surely some have also other Z, than that original 15, maybe Ferracchi, but about different OFFSETS? :confused: Anyway, there are very many OTHER Ducati modells, where can get front sprocket to Paso, cause they use same "output shaft" in those times in all modells..... Need to know only exact offset, what are looking for..... Btw, if someone is looking front sprockets (Z=15) to 1989 750 Sport, i have 2 for sale 
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| Author: | ducinthebay [ Sat May 06, 2006 6:42 am ] |
| Post subject: | sprocket carriers - 17" |
If you have changed to 17" Brembo rear wheel, you should know that there are two different sprocket carriers. The one that came on the 4.5 wheels moves the chain farther inboard than the one that came on the 5.5 wheel. Both of the carriers fit both wheels, and are interchangeable. It only affects your chainline. As best I can surmise, there are three different front sprocket offsets. The Sport is the furthest outboard with the welded washer on the sprocket and the 8mm fixing bolt. Next is the Paso that is shown in the picture a few posts up, and hard to find. And last is the Monster/SS sprocket that is the furthest inboard, and common as dirt. If push comes to shove, and we can't find front sprockets anymore, having a shop weld on a thick washer to a newer, more common sprocket may be just the deal. Are all Paso output shafts threaded inside for an 8mm bolt? Phil 90 Sport |
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| Author: | Finnpaso [ Sat May 06, 2006 8:01 pm ] |
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All output shafts have that 8mm thread, but its useless! I know, that 4,5" and 5,5" wheels have different carriers and surely need to check chain line, if put 17" wheel to Paso, but i think one possibilty is to use also 907 swingarm and surele again need to check chain line and maybe use different front sprocket. All such time Ducatis have same output shaft, so easy to find "right offset" front sprocket... |
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| Author: | ducinthebay [ Sun May 07, 2006 2:01 am ] |
| Post subject: | front sprocket |
The countershaft sprocket on my Sport is bolted on using an 8mm bolt into the countershaft, so not so useless for me. The sprocket is basically a stock sprocket for Monster/SS, but has a thick washer welded on. I have seen other Sport sprockets with the similiar arrangement. Since the Sport motor was borrowed from the Paso line, I would assume they are the same. |
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| Author: | Finnpaso [ Sun May 07, 2006 12:00 pm ] |
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I havent seen such. (and i am talking about all Pasos, 907IE and ST series Ducatis...) I dont know Sport. Anyway same output shaft all... |
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