czakky Posted December 18, 2016 Share Posted December 18, 2016 Again, how does one check alignment if these paint marks are worthless? 1 Link to comment Share on other sites More sharing options...
Chuck Posted December 19, 2016 Author Share Posted December 19, 2016 It's pretty obvious if you sight down them. A few degrees is pretty easy to see.. 1 Link to comment Share on other sites More sharing options...
docc Posted December 19, 2016 Share Posted December 19, 2016 It's pretty obvious if you sight down them. A few degrees is pretty easy to see.. One tooth is, what, like 5º ? Or more like 10º ? (not sure how many splines there are on the shaft mate-up . . . ) If the shaft is one tooth off, can that be easily seen with the bike fully assembled? More importantly, with just one tooth off, will the rhinoceros feel quite that frosty? Link to comment Share on other sites More sharing options...
Chuck Posted December 19, 2016 Author Share Posted December 19, 2016 I don't know how you would see it with the bike fully assembled. Link to comment Share on other sites More sharing options...
docc Posted December 19, 2016 Share Posted December 19, 2016 I don't know how you would see it with the bike fully assembled. Maybe one for the *Swingarm Off Maintenance Checklist?* Link to comment Share on other sites More sharing options...
pete roper Posted December 19, 2016 Share Posted December 19, 2016 It's pretty obvious if you sight down them. A few degrees is pretty easy to see.. One tooth is, what, like 5º ? Or more like 10º ? (not sure how many splines there are on the shaft mate-up . . . ) If the shaft is one tooth off, can that be easily seen with the bike fully assembled? More importantly, with just one tooth off, will the rhinoceros feel quite that frosty? Twenty splines, 360 degrees. 16* per spline. It's easily visible and you should be able to sight I by setting the back one up and then lying down behind the bike and squizzing up towards the front yokes. 1 Link to comment Share on other sites More sharing options...
Baldini Posted December 19, 2016 Share Posted December 19, 2016 czakky, for alignment see post #9 Regardless of factory paint marks, the driveshaft that came on my Scura could never be properly aligned. Best I can get it UJs is about 5degrees off parallel. If you move it to the next spline to correct, then it's 5degrees off the other way! (I'm guessing measurements - if the splines are at 16* then mine must be more like 8* out either way?). Whatever, it appears to me that one or both of the driveshaft halves have been attached to UJ at the wrong angle. As I recall, this has been discussed before here. Then, someone went to the trouble of cutting & re-welding the parts to correct. My new, very expensive driveshaft looks to be a couple of degrees out, at best. Pete, can I assume that UJs in parallel plane is ideal & failing that, the closer to parallel the better? So 2degree out is better than 5? ie. is it worth remaking my new driveshaft to be bang-on? Cheers. Happy & peaceful Christmas to all. KB Link to comment Share on other sites More sharing options...
gstallons Posted December 20, 2016 Share Posted December 20, 2016 Close is close...... I am not sure how much 2 degrees will matter. An opinion from a specialist ( and I mean SPECIALIST ) will be the best advice .and direction to go . Link to comment Share on other sites More sharing options...
pete roper Posted December 21, 2016 Share Posted December 21, 2016 Perfectly aligned is obviously best but there will always be some manufacturing tolerance. While 2 degrees will impose some unwanted forces it probably won't be noticeable. 16 degrees definitely will be! Link to comment Share on other sites More sharing options...
stewgnu Posted December 21, 2016 Share Posted December 21, 2016 Are we really saying that with all the exacting stuff people can make, 'they' cannot manufacture a perfectly aligned prop shaft? I notice in the video a few posts back, that the rearward props offset was aligned off 'to follow' rather than be pushed- is that important? Link to comment Share on other sites More sharing options...
bbolesaz Posted December 23, 2016 Share Posted December 23, 2016 New to the V11 world, but I can tell you that BMW airhead shafts had a rubber damper built into them. When the rubber got old it would allow the 2 ends of the shaft to slip relative to each other. When it got in the 5 degree range you would start to feel it and knew it was new driveshaft time. Link to comment Share on other sites More sharing options...
gstallons Posted December 23, 2016 Share Posted December 23, 2016 There are a lot of drive shafts with that feature . I just pulled a front driveshaft from a 2004 F-150 4WD and it came from the factory with the slip yoke 90 degrees out of phase . I had to grind the index spline to where I could get it where I wanted it. Go figure ? Link to comment Share on other sites More sharing options...
NicoNZ Posted April 20, 2020 Share Posted April 20, 2020 Interesting thread. I have my rear wheel off, also planning to pull the swing arm to properly grease the drive shaft, check shock linkages etc. Bike has 64000kms now. The paint lines are approximately 90 degrees out and the driveshaft yokes are definitely out of alignment. . I have only had the bike for a year and never dug in here before. Bike rides fine and there is no play in the u joint or join to the differential. Link to comment Share on other sites More sharing options...
Lucky Phil Posted April 20, 2020 Share Posted April 20, 2020 22 minutes ago, NicoNZ said: Interesting thread. I have my rear wheel off, also planning to pull the swing arm to properly grease the drive shaft, check shock linkages etc. Bike has 64000kms now. The paint lines are approximately 90 degrees out and the driveshaft yokes are definitely out of alignment. . I have only had the bike for a year and never dug in here before. Bike rides fine and there is no play in the u joint or join to the differential. Doesnt look 90 deg out in the image, maybe 45 deg. Ciao Link to comment Share on other sites More sharing options...
NicoNZ Posted April 20, 2020 Share Posted April 20, 2020 6 hours ago, Lucky Phil said: Doesnt look 90 deg out in the image, maybe 45 deg. Ciao Yes you are correct. The painted lines are 90- degrees out approximately, not the yokes which means the painted lines are out anyway. You cannot see the other paint mark which is on the RH side of the shaft. Link to comment Share on other sites More sharing options...
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