Ian,
Thanks for the response; I have tried lubricating the bearings with WD-40 and 2-in-1 oil which works for a few weeks... but the rumbling comes back; the bearings have become damaged beyond repair.
I guess back to my oringinal question; how do I remove the fan assembly?; even if I were to purchase an new assy, I would still need to accomplish this task.
My plan was to remove the assy; check if the bearings were accessible; if so purchase new ones and pressfit them into the housing, re-fitting assy. Or, purchase a new assy and install.
Thanks
Steve
Grim Reaper, July 2009