You could do 2 different things that will work for you. The first things is to take it out, and use Locktite. They make different types for different holding strengths. Get the type that says it can't be removed without using a torch. That is the strongest one they make. The second fix if by some small chance this doesn't work is to pack the sides of it with Hercules Propoxy20. It comes in a grey tube with a black, and white putty. When you start to squeeze this stuff, and mix it, it will get a little warm, and turn grey. That is when you apply it. It will take 20 minutes (Propoxy"20") to harden as its name says 20 for 20 minutes. You can even do both fixes, just make sure that your surface is clean, and dry before applying anything.