High pitched squeal after changing waterpump

[Pyral]

I did my water pump and I hear this high pitched squeal that sounds like a train on rails. It's intermittent but I can hear it more clearly than the video suggests. Any ideas on what might be causing this?

You can really hear it at the start of the video


I haven't put the fan shroud on because I'm waiting the make sure there are no leaks

 

[Pyral]

Loosening the psp belt seemed to help. I get a similar squeal the moment I turn on the AC, and it disappears the moment I shut it off again.

So I need to loosen that.

There is something going on with the engine, it drained the overflow bottle of coolant, I hope it is the Duralast radiator cap and not the HG. I keep telling myself it’s probably a normal amount of water vapor, no piston was cleaned.

 

[AuSeeker]

If loosening the PS belt helped, I would think the bearing in the PS pump is going bad.

 

[Pyral]

All the sounds went away, I had the belt too tight

 

[AuSeeker]

All the sounds went away, I had the belt too tight

That PS bearing is still on it's last leg, keep an eye on it!

 

[Pyral]

What size bearing do they use? I can't find anything for our generation

 

[AuSeeker]

The bearing/s are inside the pump, not sure if you can buy them separately or even rebuild the pump, best is to just replace the pump.

 

[Pyral]

The pump costs $400, unless there is a $100 Aisin/Denso unit I'm not aware of I'm not replacing the pump unless I have to.

Actually it's discontinued.

 

[AuSeeker]

Hence the reason I said "keep an eye on it"!

 

[Hungryhawk]

Have you inspected the idler pully?
With the belt off you can spin the water pump , idler and also the alternator pully. Feel for any roughness when turned by hand.
All should be smooth.
With a electric drill, a large diameter O-ring, or perhaps a tool drive belt you could rig a way to spin these parts separately at a few hundred RPM. Listen for unusual sounds?