NEED HELP,FUEL PUMP BOLT ISSUE,LEAKS OIL

Another option is something I did to repair a broken tail light mount(plastic).
It MAY work in this situation.
Take the proper bolt and wrap in teflon tape. Then clean the hole extremely well. Use the proper JB WELD product(theres quite a variety) and put it on the tape wrapped bolt and some in hole if need be. Let it sit and cure, then unthread bolt from hole. Hopefully the tape will come out with bolt. If not peel it out of hole. Make sure no JB drips down on inside of housing to oil area.