HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
SenorGG

XR650R Mainshaft Threads Stripped

5 posts in this topic

Hello All:

I was replacing the clutch guide bushing with the upgraded bushing on my 2000 XR650R. While removing the staked locknut I must not have unstaked the locknut enough. I used a pneumatic impact wrench to take the locknut off. Unfortunately the last 2-3 threads of the main shaft were damaged. It looks like if I am careful and do it correctly, that I can repair the threads.

After a string of curse words I measured the threads and the main shaft is an M18 with 1.0 mm threads. I went on line and ordered the following:

Metric thread restoring file

Metric Die M18 X 1.0

Nes thread restoring tool

These tools have not arrived yet....

My questions are:

1. Has anyone ever had to repair the first 2-3 threads on the main shaft or similar fine threaded shaft, spindle or stud? If so, any recommendations on tools and/or procedure.

2. For future reference, has anyone developed a better method to unstake this locknut?

Thanks for any good suggestions….

SenorGG

Share this post


Link to post
Share on other sites

Make sure the nut is in good shape, or just replace it. If the shaft protrudes past the cases, I'd use the threadfile. If the shaft does not stick out past the cases, then you will have to use the die.

Share this post


Link to post
Share on other sites

Thanks,

Definitely a new nut no questions there... I was also going to use some red lock tight on it as extra insurance.

Any more tips/ideas greatly appreciated.

SenorGG

Share this post


Link to post
Share on other sites

If you are going to Loctite it, then find some green. #290 press fit assist will fill .005" gap and has good shear strength. Harder to find is the #680 which will fill .015" and has a high shear strength. Incredible stuff. Make sure everything is clean first.

You don't intend to take it off again do you? You WILL need an air impact wrench if you do.

Check with your local industrial hardware store.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0