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Old 03-28-2024, 11:13 PM
JEC3039 JEC3039 is offline
Join Date: Jan 2016
Location: South Lyon, MI
Posts: 43
Default Fel-Pro T'stat Housing Gasket Wicking Itself to Death

On my last couple of engine builds I used the blue paper t'stat housing gasket that comes in a Fel-Pro engine gasket kit, and in both cases coolant wicked through the gasket and left a little pool on the valley cover. Upon removing the housings, the gaskets were soaked solid and literally fell apart in my hands. I don't understand what has changed and/or why Fel-Pro wouldn't use a material that resists self-wicking, but it is what it is I guess. I don't plan to use anymore of those again.

Has anyone found a gasket that doesn't wick and bleed out?

I see Butler has a gasket that looks like the original shape of a GM gasket (I have one NOS gasket of that shape and it is made of a waxy dark brown paper material). I'll call them tomorrow and ask about that one.

Any other recommendations would be welcomed.


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