I have a craftsman riding lawnmower model 247.203744
I started it up and heard a sound that made a kind of plastic getting broken sound... which it was.
There is a black disk inside the engine compartment - that seems like a fan - that broke and started to get chewed up by the engine. Nothing happened other than me starting the mower, putting the cluth in and changing it to reverse.
Picture of broken part:
Here is where it was before I took it out:
After I took it out:
So do I need this part, what is it, how do I get it back on if I need it?