Stripped stud repair?

[Kezrith]

Hello everyone

It has been awhile since I first posted pictures of my project, hell I am just starting the work on it now thanks to work asking me to travel.

Well as I was cleaning the light surface rust off of the cam lobes, I decided to make sure the caps were torqued to spec, one wouldn't torque down correctly and come to find out, the threads are flattened toward the bottom which won't let it won't torque down.

Can I run a die down this stud and reform the threads so the cam cap will be torqued down correctly or do I need to replace the stud, if it's even replaceable?


Looking forward to getting to work on this bike finally, so thanks for any and all replies / help.

Tim

[fredintoon]

Hi Tim,
it depends on how fritzed the thread is and what kinda die holder you have.
If there is metal missing from the thread, most likely a salvage will not work.
And a normal die-holder will hit on the other studs so you can't use it although a die-nut will work if you turn it down with a socket.
But I betcha that stud needs to be replaced. That's not difficult, if you can't find a replacement stud a long machine screw will have enough thread on it to make one.

[dbeardslee]

Tim - In that location, I don't think you want to fool around with thread fixes. Bolts are cheap, heads aren't. My $.02

[tarzan]

You wont be able to insure the integrity of that bolt.Bolts stretch or strip and that makes them weak.It is a gamble.You could try it ,but is it worth it?My opinion is it isnt worth it.

[Bigleo]

stud repair

Hi, I just went thru this with mine last year. The studs are still available from Yamaha or Bike bandit, I forget exactly how much, but it wasn't more than a few dollars. Grab the old one with a Vise Grip and it will come out easily. Oil the new stud and lightly double nut it and screw it in till it measures the same height as the rest of the studs.
Leo