Looks like a Broken Remnant left on top that used-to scrub fit to the top...
Pull it out and look in there to see if there are witness marks from a scraper
Why would you Switch to a Clutch Fan if you had Heat Issues?
A solid fan is 100% all the time and a clutch type is maybe 85% at Full grab?
I don't have any heating issues...
I do just want that 15hp back.
So, I'm gonna make it work.