In my case it worked. I thought it was a bunch of wing wang before trying it... but I can swear by it, it does work. I think if your drive stopped working due to HEAT issues, then this trick works. If it stopped working for other reasons it may or may not work.
I got the idea from here:
But it only works for a short time. In fact, I barely got all the data off before it stopped working... but it was good enough to get my data back.. which was worth more to me than the damn drive.
This technique had been aluded to by zipp in this thread: