904 torque converter questions

Did you lock-tite the bolts? I miss that before. They only back out so far and make a lot of noise. So probably not that. Maybe starting with a new flex plate. Just a cheap place to start if you have the trans out. They don't cost much and if you think about what they do and the strain that is put in it. It is cheap insurance. I had a mark on my pump last year and could not find a reason. Put die spotting blue on it spun it and found nothing. Good luck.