Originally Posted by
viet cong zombi
Don't listen to dangerous, use a big greeny instead. Go for a good jog until the tendrils of phlegm are almost life-threatening and then the chugg up a nice lump on to the fan.
High-quality mineral oil for bikes is probably the same thing it came with, see if someone's got some oil from a shaving kit. I know Dell has complete engineering instructions for how to service laptops online, but it's a all day mission organising screws and bits immaculately. hard work for even a really experienced systems fiddler.
see if the noise changes if you push the the cap of the fan blades down a millimetre or pull it up with a pen 1 mm. How come you can dismantle the fan but can't replace it? If you can get the fan blades off you should be able to glue whole new thing in place perhaps?