How I fixed my T61 fan at no cost

Anyone who owned a T6x for more than a couple of years might have noticed that the CPU fan becomes increasingly noisy with time, no matter how well the machine is kept.
So my fan sounded like something was stuck inside. I ordered a new fan, but its delivery was delayed and I was so annoyed by the noise that I took the old fan apart. Believe it or not, I fixed it with three drops of bike oil. Now it is perfectly silent: no added noises other than that of the air flowing. Few weeks have passed and so far so good.
This is what I did in detail:
extract the old heatsink/fan assembly (no need to take out the motherboard, just remove the palmrest, the keyboard and the upper frame)
drop 2 or 3 drops of bike oil inside the fan motor (no need to dismantle the fan/heatsink assembly)
blow air on it and make the fan spin, then clean the oil that spills (I cleaned with a soft brush); do it again and again until no oil comes out
carefully clean the heatsink
apply some good thermal paste to the heatsink
put everything back together
enjoy the silence!
Please post on this thread your success&failure stories on this procedure.
Do this at your own risk: I take no resposibility for whatever damage your laptop may incur to.

I don't understand where you left the oils drops. My fan seems to be inside a black plastic cover ..
Peter from Amsterdam

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