[kwilford]

Once you get the holes cleaned out, get new M5 grade 10.9 bolts (my speciality bolt store had them, but NOT with the 8 mm head) and make sure they go in far enough to tighten the swivel pin against the gear. I found I had to shorten a couple bolts to allow them to be tightened before they bottomed out on damaged thread.

Also make sure the mechanism is working properly before you reassemble it. Here's a photo of how the pin latches into place, and how the drive gear pushes a release latch, allowing the pin to be released.