Cleaned and degreased the case threaded hole this morning.
Guess what I found! Green and hardened adhesive in the thread. Had to use a pick tool to get them off the thread. Really hard stuff.
Geez Henry, you were correct. Factory used some green thread sealant. I did not catch it the first time.
This time, this baby will completely seal up with Loctite 574 and new crush washer.
