fluidamper fan spacer issue

[505yam]

Has anyone else had trouble with their belt squealing after installing a fluidamper and the required fan spacer on an OBS?

The belt squeal happens when its warm out and above 2000 rpm, I have determined that it is the belt slipping on the water pump pulley and not any other pulleys trying to lock up. But I never had any issues before the fluidamper install.

any thoughts?

 

[Swaan]

You prob contaminated the belt during install. Greese or oil or coolant. Sometimes the only remedy for that is a new belt.

 

[505yam]

already tried new belt, then new tensioner, then a shorter belt and it never changed...

I have wondered if moving the fan closer into the shroud makes the fan work harder (drawing more air across the radiator due to the tighter clearance of fan and shroud) but I would this this would be a know problem if it was the case?

 

[Swaan]

Wierd.

Shouldn't be squealing , your fan shouldn't even be spinning full speed . Your fan clutch should be almost freewheeling.

I didn't use that spacer. Just put a plastic 6.0 fan on it.

 

[Strokersace]

Wierd.

Shouldn't be squealing , your fan shouldn't even be spinning full speed . Your fan clutch should be almost freewheeling.

I didn't use that spacer. Just put a plastic 6.0 fan on it.

That's what I did and had zero issues.

 

[mandkole]

Have you checked alignment of the pulleys ? 5/16 key stock works good.

For grins verify belt routing again. It's slipping on an accessory that takes more power to turn. I'd be leaning to the coincidence something failing.

 

[505yam]

I don’t think it’s any other accessory because it goes away when I take the fan off and drive it. Obviously I can’t leave it like that though.

So the 6.0 plastic fan works fine without the spacer?

If that’s the case I will find one and try it.

 

[Swaan]

Yup

 

[gnxtc2]

Did you use a SD water pump pulley? Wonder if the OBS pulley is hitting the Fluidampr.

Billy T.
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[505yam]

Did you use a SD water pump pulley? Wonder if the OBS pulley is hitting the Fluidampr.

Billy T.
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yes I switched to a SD water pump pulley and a shorter belt at the same time.

I am getting a 6.0 fan hopefully this week to try. Fingers crossed it wont squeal anymore.

 

[gnxtc2]

I would updat to the dual tensioner at the same time you do the fan. Use a Motorcraft tensioner only.

Billy T.
[email protected]

 

[505yam]

I would updat to the dual tensioner at the same time you do the fan. Use a Motorcraft tensioner only.

Billy T.
[email protected]

Use the SD dual tensioner on an OBS belt setup? I have never heard of that swap, that would change the belt length as well?

 

[gnxtc2]

Look up TSB 98-23-14

Hopefully the .pd file attached

Billy T.
[email protected]

 

[AZStang]

yes I switched to a SD water pump pulley and a shorter belt at the same time.

What belt did you use? Gathering parts to do this as well.

Thanks,
Shawn