I own a 2006 John Deere X320 Lawn Tractor with almost 900 hours on it. After I refurbished the deck the other day, I got to looking at the transmission drive belt and decided to replace it, as it was badly cracked and worn. I uploaded a video to YouTube and posted the link below. Does the drive belt seem to be wobbling a little too much? I followed the routing instructions exactly, and it's around all of the pulleys and belt guards. Unfortunately, I didn't watch the old belt with the engine running, so I have nothing to compare it to .I just wanted to get it off and get the new one on. It is an aftermarket belt I purchased on Amazon, manufactured by Stens for the X320.
Here's the link.https://www.youtube.com/watch?v=WJYwIZyZt9Q
Also, since I had the mower torn apart, I noticed the bottom of the engine where the crankshaft turns the pulleys, was also wobbling a little bit. Here's another video for showing that.
Thank you for watching, any insight would be appreciated!