|Originally posted by 84 Fiero SE:|
Thermostat Housing Leak .... From housing to engine block .... Replaced gasket 3 times now, and for some reason I can't get it to seal. Original gasket was a rubber seal .... AutoParts are now selling these composite gaskets. Some thoughts or advice please...?
1. Two styles of Tstat housing.
If has rubber "O-ring" then FEL-PRO Part # 35062 and others Will Not Work
2. O-ring then you can try using only RTV but you need:
a clean and dry housing and block. No coolant dirt or oil at all on the parts. Use brake cleaner for final cleaning step.
RTV needs time to set and "dry," like 2 days or more. You can not fill the system while the RTV cures.
I made a gasket using FEL-PRO Part # 3018 Cork-Rubber Sheet.
inside diam is same as FEL-PRO Part # 35062
Outside diam fit the housing hole.
Then I use small amount of RTV, both sides, and let dry 1-2 days. (Read full dry/cure time of product, set time is meaningless here.)
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)