91 240, crank pully bolt just fell out...

[Lowdown89]

Ok sorry for the novel guys but this just blew my mind, and could use all the hell I can get!



Ok guys while my 850 wagon is down for repairs I have been driving my 91 240 wagon everyday, with up until yesterday no real issues... The car only has around 140k miles on it and was garage kept for the past 9 years until I got it from my neighbor 2 years ago. Anyway I had been running around town all morning in it with no problems.. As I sat in the drive thru line at the bank it started to get hotter than normal but as soon as I pulled off it went right back down and I went on my way to the auto parts store to pick up some other stuff well as I started the car up it was making a little noise almost sounded like the exhaust was rubbing on something but nothing like holy cow its about to fly apart... Well I said I'm alread pulling out in traffic I will check it when I get home (I live about 1 1/2miles away) well the noise stayed with me until I made the left turn onto the road to my house which at that time all the dash lights came on, and I lost power steering... But the noise was gone I drove it the 1/2 mile to the house where I popped my hood to check things out, I saw that the crank pully was just being held on by the belts...now at this time I'm thinking the bolt sheered off in the crank or something came apart but what do I see laying down in the splash pan? The crank pully bolt, no damage no weird marks it looks as if it just fell out. So just a few minutes ago I attempted to put the bolt back in but its seems as if the pully won't go on quite right.. After starting the bolt and getting it tightend down as much as I could without the engine spinning over it looks as if the belts are lined up just right and the pully need to sit farther back on the crank... I looked around some on the forums and I keep reading about a little nub on the pully that was used instead of a key way or something like that. But I don't see anyhting on my pully just 2 small notches 1 on the crank and 1 on the pully... When the bolt fell out could I have lost another part that went somewhere else besides the belly pan or did I break something on the pully and need to replace it? Also if anyone has pictures of the backside of a good crank pully I would love to see what its supposed to look like