Went to go torque (8.7lbs) my Allen head 6x1.0 bolt for the oil chain guide on the lower block and it wouldn’t tighten. Removed bolt and found some broken threads on the bolt. So now I’m going to buy a time-sert kit m6x1.0
but my question is how do I figure out the length of the insert. I was going to go with a 9.4mm insert. Does this sound correct?