Stripped axle threads
What a pissy night. I was planning on doing a quick chain adjustment and lube tonight and it turned into an ordeal.
I got the chain where I wanted it and tightened the axle nut with a 1/2" socket wrench to just snug. I got out my torque wrench, set it at 72 ft./lbs., then started to torque the nut down. I was pushing on the tire a bit with my knee because the right side wanted to slip back a little as the nut was tightened. The nut was getting close to tight enough but the torque wrench never clicked. I torqued the nut another 1/2 turn or so then decided that something didn't feel right. I then tried to loosen the nut to check things out and it took a lot of effort to finally get the nut off.
I took the axle out and the outer 1/2 of the threads are rounded off. There is also some sort of imperfection about halfway down the threads that almost looks like a tiny weld bead. I'm guessing that the nut hit this stuff and couln't grab any more threads. In the process, the threads in the nut got tweaked and that's what rounded everything else off when I loosened it.
The bottom line is that I think the axle was bad and I just hadn't hit the bad spot until this chain adjustment. I've never had the axle nut completely off so there's no chance of cross threading. I'll call the dealer tomorrow and see if they'll replace the axle under warranty.
Has anyone else ever run into this sort of thing?
06 DL-650 - SilverBlue
05 DL-650 - red (RIP - watch your mirrors!)