Join Date: May 2017
Thanked 0 Times in 0 Posts
Help!! Stripped Studs While Swapping Sprocket
I am pretty pissed off at this. I'm working on a complete rebuild (rebuild thread may be posted soon, see other posts for some details), and just when I'm almost finished, I decide to swap the rear sprocket for 40T. When I was test riding it through the neighborhood and making adjustments, I noticed first gear is useless, figured this would be a worthwhile upgrade. 8k RPM at 10mph is just annoying.
Anyway.. on to the actual point.. I go to torque down to the 44 ftlb spec. I use an impact drill to get it started, but not too much pressure, just enough to get the nut down the stud. Using a digital torque wrench (just bought it and will return it because it's useless), it showed that I got to 37 ftlb right before the nut started spinning relatively loosely. Backed it off, threads were completely smashed and ripped from the stud. Backed off another one that I tightened to about 37 lb on the opposite side, stud looked fine but threads on the nut were flattened. That's only two! I think that I compromised some other nuts. I went ahead and put some offers on salvage parts on eBay, but this just pisses me off.
My main question here is, should I go to about 35 lb and use blue loctite? I can't be the only one who's had this issue so far! I checked some R1/R6 forums and they were talking about the manual saying 76 lbs. They said they talked to dealership and were told 35ish lbs. Thats why I'm asking here, surely someone's experienced this on the Ninja or knows how to do this without crushing threads.
This is the one thing I've become desperate on. Everything else has had it's frustrating moments, but not like this where something broke and will continue to break. I'm desperate for help here. Thanks in advance for any input!