Squeeking Belt Problems... LONG

Squeaking Belt Problems... LONG

First of all, here is what is going on. Before last weekend I had no squeaky belt issues at all. Last Friday I put on a new harmonic balancer because my old one was shot. At the same time I put on a new factory length Gates belt.

I do have a set of MAC under drive pulley on the car (crank and water pump only). I called MAC just to make sure on the belt length and they said stock would work. Their customer service sucks, the guy kept me on hold and then asked me to call back in 15 min...

And the old belt was thrown out in the trash by my mom. DOH!

When I got everything back together it was squeaking. I rechecked everything and everything is tight. I thought it might be the belt so I went and got a stock Ford belt from the dealership. Still squeaks. I went to AutoZone last night and put 4 other belts on, 2 steps up from stock and 2 steps down, all belts still squeak. I also sprayed WD 40 on my belt like the guy at AutoZone said and I still get the squeak.

It gets even louder when the A/c is on and the A/c clutch/pulley is only 2 years old.

I did notice my crank pulley wobbles a little now but the balancer does not. The belt tensioner is almost at its limit where the arrow points between the 2 notches on it. I also dont have the original pulleys, when I bought the engine it already had the MAC ones on it.


Any one have any ideas or suggestions?

The crank pulley is on flush and bolted down with locktite. I have hand turned the other pulleys and they dont produce any nioise.

One more thing I noticed is that the idler pulley, when I first put the belt on has room between the 2 markers and doesnt make noise when the engine is running. It only start when the A/c is on and thats when the idler moves to the extreme edge of the marker.

Im glad I went and bought a new set of pulleys, it turns out it was the crank pulley making the noise.