Installing Harm/Bal and threads Stripped... WHAT NOW???

[techinspector1]

Two choices:

Install another heli-coil.

Install a stud and use a washer and nut to secure the damper. Cut off a piece of threaded rod of the correct diameter and thread pitch. Use 2 nuts jammed together on the outer end to use your wrench on to thread the stud in. Chances are if you chamfer the end that threads into the crank, you'll engage all the threads that are still good and you'll have a player.

Now, I've never had to resort to this, but I would think that if ALL the threads are stripped and you can't get the stud to get a good grip, you might mix up a batch of JB Weld and smear it on the threads and thread the stud in as best you can. Let the epoxy set up for 24 hours and the stud should be there forever. That does raise a question about what to do with it when you disassemble this motor to turn the crank journals, but hey, that's quite a ways down the road, huh?

Your problem in the first place is that you were using a bolt that was too short to engage all the threads.