Lonestar92 Posted September 16, 2016 Report Share Posted September 16, 2016 (edited) I got my banshee not too long ago and decided to pull my flywheel off to clean it up. After I pulled it I discovered the threads were stripped on the crankshaft. I chased the threads with the proper 12x1.25 die and ordered a new flywheel nut. It's time to put it back on and I'm afraid if I tighten the nut to press the flywheel back on that it may pull the threads and ruin the crank. The other option I thought of is heating the center of the flywheel and tapping it on with a sleeve and hammer, then torque the nut onto the crank. The only problem I see with this is pushing the flywheel on too far (not sure if it's possible) and getting the hot flywheel up against the crank seal. Is there anything to keep the flywheel form pressing on too far? Any help would be greatly appreciated, trying to save myself from buying a new crank Edited September 16, 2016 by Lonestar92 Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted September 16, 2016 Report Share Posted September 16, 2016 Its tapered. Unless you split the flywheel or shrink the crank. It'll stop Quote Link to comment Share on other sites More sharing options...
Lonestar92 Posted September 16, 2016 Author Report Share Posted September 16, 2016 I was just worried with heating it that it would go too far up the taper since the inside diameter of the flywheel will expand with heat. Quote Link to comment Share on other sites More sharing options...
Lonestar92 Posted September 16, 2016 Author Report Share Posted September 16, 2016 I guess I'm really just paranoid about ruining the crank. There was enough material for the threads to cut, I'm just worried about the material being weakened from what had been done to it in the past. I know heating can demagnetize a magnet, I was just going to heat the inside of the flywheel where it rides on the crankshaft, as far from the magnet as possible, with minimal heat to keep from damaging the magnet. I wasn't planning to heat any more than 150°,just enough to help it slide on a little easier Quote Link to comment Share on other sites More sharing options...
Lonestar92 Posted September 16, 2016 Author Report Share Posted September 16, 2016 I guess stripped may be the wrong word, crossthreaded is probably more accurate. Material was there, but it was screwed up Quote Link to comment Share on other sites More sharing options...
Lonestar92 Posted September 16, 2016 Author Report Share Posted September 16, 2016 Okay, thanks for the help. I wasn't sure how much resistance it would have pressing it on. Most of the things I work on daily require using heat or liquid nitrogen to make things fit Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted September 20, 2016 Report Share Posted September 20, 2016 Use a washer to space nut to good threads 1 Quote Link to comment Share on other sites More sharing options...
2004LEBanshee Posted September 21, 2016 Report Share Posted September 21, 2016 Lap the flywheel and use some blue locktite on the nut. Should be fine. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
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