New Belts and Idler Pulleys(Grinding Noise)

[FzeeJ]

Did you replace the tensioner pulley for the A/C belt also?

IF so....the dust cover on the front of it needs to be oriented a certain direction or it can rub on the pulley.

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Flintknapper,

I did replace it and I’ll post a pic of it soon. 99 percent sure the dust cover is on correct.

Thanks

 

[FzeeJ]

Sorry for the ignorance but how do you post videos on here? Would I have to upload to YouTube then post link here?

 

[Broski]

Most likely if it was on wrong it would make noise all the time.
Have you check the inside of the fan shroud ?

Yes YouTube then a link on here

 

[FzeeJ]

Most likely if it was on wrong it would make noise all the time.
Have you check the inside of the fan shroud ?

Yes YouTube then a link on here

Broski,

I did check inside fan shroud… it’s dusty and I can’t find anywhere that looks rubbed.

Thanks

 

[FzeeJ]

Just started vehicle cold and revved it to take video and it didn’t make the sound after maybe 10 revs… put 80 in drive with brake on and revved it under load and no weird sound… put 80 back in park revved it again and it made the grinding/scraping noise after every rev around 1500rpm. I’ll try to post vid soon.

 

[FzeeJ]

 

[bhsdriller]

Yeah doesn't sound like belts...I'd have someone else rev it while you can peek around/under the engine to see if you can pin point where it's coming from

 

[FzeeJ]

Yeah doesn't sound like belts...I'd have someone else rev it while you can peek around/under the engine to see if you can pin point where it's coming from

Weird thing is it didn’t make this sound until I changed belts/pulleys

 

[FzeeJ]

How freely should fan spin when vehicle is off and should there be any front to back play when pushing and pulling on tip of fan blade?

 

[bhsdriller]

Not very free unless the oil inside is completely shot. There is a resistance

Front to back on the blade itself or the base where it's connected? The blades are plastic so there can be front/back play if you push hard enough.
It should be mounted 100% solid, no play from the base

 

[FzeeJ]

Not very free unless the oil inside is completely shot. There is a resistance

Front to back on the blade itself or the base where it's connected? The blades are plastic so there can be front/back play if you push hard enough.
It should be mounted 100% solid, no play from the base

 

[John McVicker]

Good video, that is way too much movement of your fan, way too much.

The fan needs to be tightened up. I’m not sure on an 80, but on my 60 it’s fairly easy to access the nuts in Stu…tight but doable. Someone with 80 experience will chime in.

 

[bhsdriller]

Yep way too loose, not normal.
Pull it to inspect/replace if needed

Just had mine off not sure if that specific spot can be tightened

 

[Kernal]

@FzeeJ : Looks like the shaft/bearing of the fan clutch is bad, need a new fan clutch. I would not run the engine until it's been replaced.

Would be interesting to see another video once you pull the fan clutch and remove the fan showing the movement of the clutch body on it's shaft.

One source of a new AISIN fan clutch:

More Information for AISIN FCT004

 

[george_tlc]

Eek!!

cheers,
george.

 

[FzeeJ]

Another video of noise closer to engine now that I had my wife pressing the pedal.

Also it doesn't make this sound during revs until the engine has been running for about a minute. Smooth as silk revving until it’s been running for around 1 minute.

 

[cruiserdan]

That is an aftermarket fan clutch and it is trashed. That needs to go before it blasts through the radiator and/or hood.

 

[flintknapper]

Yeah fan clutch if not the entire problem needs to addressed. Bet the shaft is spinning.

 

[FzeeJ]

Thanks guys… Do you think the fan clutch could be the culprit for the noise before I start removing the new belts back off and diving in further.

 

[surfpig]

Thanks guys… Do you think the fan clutch could be the culprit for the noise before I start removing the new belts back off and diving in further.

I would definitely start with the fan clutch. Everything else looked OK to me. But that... WOW.