Join Date: Jun 2009
Location: Burton, British Columbia, Canada
Yes it is a fiddle to connect the front part of the driveshaft, looking back at your post with more time, I'd think the front is disconnected otherwise it would make quite a racket if you'd engage the transmission and the driveshaft spun loose into the swingarm.
But just for clarification did you static test that or did you try with engine running/tranny in gear?
So to lock the front part of the driveshaft in place....I am getting good at that. What I do is stick a piece of wood dowel about a foot long in the splines then tape that so it doesn't spin. Then taking into account the flop of the U-joint I carefully insert that into the swingarm using the dowel as a sort of a handle. A little fiddling around and you should feel the yoke engage into the splines. That can take a minute or....10-15. Don't get frustrated, it does go in.
Then when I know it is engaged, a sharp rap with a hammer on the dowel will push the driveshaft all the way in and engage/lock the circlip on the transmission output shaft.
When you have the pieces apart, not a bad idea to phase the driveshaft, that is line up the U-joints, then mark both parts to keep everything phased as you install the RD.THAT is where it can get fiddly.
Too bad can't post pics of the phasing from here, I do have such but it is well discussed so maybe a Google search will get you there. If you get the BMWON magazine, I think sometimes in the spring 2008 (9 ??) there is a very good article by Paul Glaves on why it is important to phase them driveshafts.Don't know if that one is archived yet, haven't had time to look for it again. But that "Phasing" also goes for automotive driveshafts, so the info is out there. Certainly not in our manuals.....all they say is re-install as found, whatever that means. BTW a new BMW driveshaft will come phased in the box....install as found.
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