MLG.....I blew that pic up a bit and took a closer look at it and I believe that the mark on contraucreek's flywheel is just the paint worn off by the use of one vee belt.
Not to start a huge controversy, but my little generator which is a 3600 rpm generac (I know, I know, it's crap and will probably only last a few hundred hours but it's new, and it was FREE so I'm going to use it until it craps out, I'll let you all know when that is
) has only a single vee belt on it.
The single vee belt is not an add on, placed their by the PO, it's built into the fan so it has to be stock. I'm going to try and run it with one vee belt, as it's only 2400 watts, and will see if there's any chirp etc or undue wear. I know I should be replacing the pulley with a serpentine pulley and using that but.....
I eventually want to get one of Troy's nice 5kw 110v generators, but that'll have to wait as I'm on a fixed income and hobbies sit pretty far down the list of monitory priorities, especially since a grandson has usurped quite a few of those priorities.
Stan