This is not really a question, so much as a reference in case anyone else runs into the same problem later. I had a 20GB Western Digital come in, and they aren't really a big deal to work on. Initially I found that the board was bad, as the spindle was spinning slow. Swapped everything over to a new board and the drive was clicking. Determined that it was the heads. Swapped the heads out. Again, no big deal on these small drives.

The drive acted like their was a head alignment problem at first. It would just start to calibrate and then begin clicking. I powered the drive down, make a slight adjustment, and again the drive would click. I repeated this 4 or 5 times. Finally I just recentered everything, torqued all the screws, and decided to see what it did. The drive clicked and clicked and clicked, and continued to click. Then it stopped clicking out of no where, and became ready. I cleared up some firmware issues, regenerated the translator, and every time the drive powered up it would do the same thing, it would click for 20 or 30 seconds continuously and then become ready. In DDI on the second pass it would occasionally have to repower the drive, and it would click like this every single time. Then it would become ready and continue imaging like there was no problem.

I guess I'm just posting this here because if you run into a case like this on one of these drives or a similar one, it may be wise to just let it run for a little while and see what happens. You may think there's either an alignment issue, head compatibility problem, or damaged heads from the swap, but it may still end up working out ok if you just give it a little extra time.

Thanks for your admit
This low quality EB drives was born to die .
This is a well-known problem (combination of "Taloon-chip" and low-grade cover HDA ) that lead to translator's problem too.
I think you could avoid heads swap.

_________________
Angel Data Recovery

It failed heads test, so I assumed the heads were bad.