Hi everyone,
Having read the wii disk drive noise error thread I thought it might've solved my problem but...
I have a wii that won't spin disks, Gamecube or Wii. So I bought a new drive from ebay which arrived today. Hooray I thought, pop it in and away I go.
But despite the new drive spinning CD's and GC disks, it still doesn't like wii games! Any ideas as to why? The original drive was in quite a grubby wii so I'm tinkering with that one at the mo to see if the drive mechanism is clogged with the fluff that seemed to be everywhere when I first opened the Wii. As far as I can see neither drive looks to have had any botched modding on the board.
Any help would be appreciated! 
Hmm this sounds very strange indeed. Is the console modified in any way at all? Soft modded? It's the same head that needs to read the GC CD and Wii disks, although it is probably operating in different modes for each. Not sure if there's a chip that controls the drive, but that could be faulty. Sounds like you might be in the realms of diminishing returns and looking at binning/replacing to me.
Can't really think what this would be either. Possibilities:
- lens calibration, GC and Wii games are DVD, but there might be an issue with full size disks and lens position (I would roll the lens all the way out to the edge if possible, just to make sure)
- dead/dying lens, duff worm drive
- there is a wii drive chip fitted which is malfunctioning
- flaky data connector that somehow affects Wii disks only (very unlikely, but give em a wiggle)
What happens when you stick a Wii disk in?
I'd think it is probably one of the first three. I don't know much about wii drive chips, but you'd need to take a look at the board, see if there is anything suspect.
You could possibly swap the mechanism over for the lens and board from the old drive too, to begin ruling components out as part of the problem. Fiddly, but should be doable.