Tomica world 7524 question

Ok so I changed out the 3 gears white gears pictured, but the proprietary grey gear (circled in red) is more tricky to replace, so I left that one alone for now hoping the 3 replaced gears would be enough. Long story short it was.






Also the spiral gear was cracked as well but didn't notice it until I was putting things back together to test if the 3 replaced gears were enough to get the Automated Construction Site functioning again.

I don't have a direct photo of the spiral gear crack but here's a picture with the spiral gear when I first opened it up



If the three replaced gears didn't fix the problem I obviously would have opened it back up and took a picture of the cracked spiral gear. Video to come with fix thread