Hey,
I had some issues finding the right Head for this engine as it uses a taller head. It's about 73mm. But I finally found one and in the process of installing. I couldn't find my feeler gauge so stopped there and figured I'd check the condition of the belt. I found that the side casing had silicone all the way around it and two washers stacked as spacers. I got it open and this engine has an aluminum fan mounted with the center bolt. I'm not sure if this was original or not as some fins were broken and looked as it rubbed the inner case at one time... hence the spacers.
Anyone else see this before or maybe were to get a new fan. I hadn't started looking yet.
Just coming to vent here first as I'm a little upset with the guy that sold this to my grand daughter for not being forthcoming about apparent issues he had to know about. Such as this case fan problem, the plug threads stripped out shooting out the plug. Most lug bolts cross threaded on rear wheels. I guess I'm too honest of a guy and too trusting as I could never do that to someone. Especially a young mother with a two year old.
https://photos.app.goo.gl/bNBMuhXyzCYs7aWF6
https://photos.app.goo.gl/XsZcjhj88ApnUrKf9
https://photos.app.goo.gl/ZS78A1gjvffpqFUy6
https://photos.app.goo.gl/8MSMjeMP8k9HHHicA