Straange Noise coming from engine, Sounds like a parakeet! Options

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OK, here's the story. I dropped the engine to install the seal between the sheet metal and the oil cooler. I had the fan, and all the sheet metal off and then put everything back with the addition of the rubber seal for the oil cooler. Now its back in the car and running gud! At idle and low RPM it makes a tweeting sound that goes away at about 2.5-3K. Its not the alternator belt. I removed the belt and it still makes the same noise!

It sounds like rubber or plastic rubbing on something and I have no idea what it is. All I know is that the WCR is one week away and I don't have the time or energy
to drop it again even if I knew what it was which, I don't.

Any suggestions?? (IMG:style_emoticons/default/headbang.gif)

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Wow!

Thanks for all the suggestions. I never would have thought that Slits or Aaron would sabotage my engine, but that's gotta be it. I just wish I knew what they did.

I'm pretty sure the fan is rubbing on something. But it doesn't sound like metal. Metal would make more of a grinding sound. When I shut the engine off, it continues to make the noise until it comes to a complete stop and the pitch of the "squeal" gets lower and stops when the engine stops rotating.

The "squeal" is continuous, so I think the fan is on square to the crank. If it was wobbling the squeal would be more intermittent.

I never took off the little spacer washer off, so I'm pretty sure its in there. Its not around the garage anywhere that I can see.

I've driven it on the fwy for about 25 miles and it runs great. I originally thought it was the alternator belt squealing and it would be OK to drive it. If it is rubbing on something rubber or plastic I would think that after 25 miles the object would have worn away and it would stop squealing.

I'll poke around and see what I can see today.

Seth:

Its running pretty nice! I tried the new jets, but they seemed to be too rich. I was getting some popping out the exhaust. So right now I'm 1 size leaner than before. I had to clean out the idle jets again and that really smoothed out the engine. What are you going to do with your oil leak? WCR?



Thanks for all the help guys. (except Slits and Aaron)