Kids asked me to fix their Wii that kept ejecting disks.
First half of video is me trying to figure out what is wrong, about 5 min to replace drive, and then 20 minutes putting thing back together.
Link to video that shows how to remove case.
   • Fix Wii Disk Read Error  

this is the drive I purchased
https://www.amazon.com/gp/product/B06...

Found this video after filming and replacing mine. You could try this before just ordering a replacement.
   • How to fix a Wii DVD drive that refus...  

00:00 Intro and disk eject symptom
01:25 Case is off, begin investigating
05:48 Problem identified, ordered replacement drive
08:44 Replace DVD drive
13:45 Painfully slow case reassembly
26:35 Final reassembled test