Okay- I searched and found a lot of info on Nexus hubs, but little that will help me with my specific issue. Here`s my situation: I`ve been running my Redband 8 for ~2 years, maybe 3000 miles. I don`t have any real problems, just want to keep it in good shape and I see that Shimano now recomends occasional relubing and cone replacement.
I tried to disassemble my hub today according to the online tech manual, but didn`t get very far. The next step after pulling the shell off is flip the hub over and remove a dust seal from the drive side. (Step six here: http://bike.shimano.com/publish/cont...08%20ohaul.pdf)
It doesn`t want to come off and I don`t want to bend anything or screw it up just to keep it from getting screwed up in the future. The instructions are for the 8R20 and I think mine is the 8R25, but it looks the same so far, so I THINK that`s still the way I need to go. Anybody done this? Since a good part of the mechanism is behind that seal, I think I really ought to get at it. Or maybe just force some grease into the works?
Anyway, that was today`s show stopper. I`ll likely run into more if I get past it. And while I`m in there, am I supposed to flush out the old grease (discolored, but still not gummy) before I relube? Any related tidbits of advice appreciated. Thanks.