Seems to me I read someone cleaned the area thoroughly and sealed it with a high temperature silicon.
You may find some posts on this issue in the self help section.
I used brake cleaner to remove all oil residue and dirt. Low pressure air to dry completely and then sealed with black high temp sealant. The key is to use a small screwdriver to pull back the seal as much as possible to clean, air dry, and then force sealant into any gaps that the screwdriver allows.