Jonez If it is, Water pump bearings it is likely that the fan will not turn true and pretty rare for the seal to not leak. I haven't heard of the pump noise not changing with engine speed changes, unless it has an electric pump. That brings me to believe that your noise [I can't distinguish it on the video I just don't hear like I used to
] is not governed by the engine making it something that is electric [constant speed]. Not much help Sorry but this may lead you to look closer at some other potential area. Harry
I'm not a hoarder I'm a preservationist 78 Monza Spyder (~Soon(ish +/- I guess) To Be 2+2 with Spoilers)