I have a 1995 Acura Integra LS. Swapped the motor into another LS motor. taking out the spark plug, and found out that one of them is stripped. Well, the hole where the spark plug goes to is stripped. Found out that they had put some kinda of ring that went around the spark plug to make it fit the hole. But for some reason, it wont tight back up anymore. it'll tight by hand, but not all the way. we tighten it by hand, cranked up the motor, and wat you knoe. It shot right out. (kinda dangerous). any suggestions?