Mechanical Cooling Fan broke during 6000 rpm burnout.

So, am I right in my assumption with too much rpm? Why now and not the whole last two weeks that I have been driving my car on the autobahn and everything else?

Just had to check and make sure...but yeah, you are right about it not being able to handle more than 4500rpm.

I was under the impression it was a 40 yr old factory fan.lol

my flex fan says good to 12k