What could cause this sound

Oh, bummer. One possibility - I hope it isn't the ball bearing just behind the lower timing belt pulley. It is a sealed bearing - it gets no lubrication from the engine like the inner one does. When the bearing really fails, the shaft can wobble around, and will leak oil past the oil seal onto the floor. (Guess how I know?) Got a leak yet? I sure hope I'm wrong. There was a recent thread, though, on how to replace this bearing with the engine still in the car, if you have to. -Steve

 

Hi GeoMetry.
It almost sounds like a bearing may be starting to fail ?
I am in the middle of repairing/replacing failed bearings myself in the general vincinity of where you hear this sound. I'm not sure if your problem is the same one, but I found that one of the outer Timing Belt Drive pulley bearings had failed in my 308. Mine got so bad that I actually never heard it squeek, but rather a sort of grinding and kinda rumbling sound.
Turns out the outer bearing behind the drive pulley was shot. See my post for this one.
http://www.ferrarichat.com/forum/showthread.php?t=197893

Found soon that the INNER bearing was also worn out, ...... and the saga continues ....

A sure way to find out is to remove the belts and grab the drive pulleys to check for looseness and slack.

Good luck with your continued troubleshooting !
H

 

Yes, that's the thread. This is what my outer bearing looked like. -Steve
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