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Old 05-30-2021, 11:20 AM
FirebirdHank's Avatar
FirebirdHank FirebirdHank is offline
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Join Date: Jan 2011
Location: GB Wis
Posts: 287
Default Leaking thermostat housing

I have been fighting a coolant leak at the thermostat housing for a few years. I discovered a couple years back that the housing was not flat. I attempted to flatten it on a bench belt sander and it held for a short time. I then purchased a new housing and again it held for almost a year but failed again a week ago.
What is the best wat to seal the housing to the manifold? gasket? no gasket using gasket maker? gasket with gasket sealer?

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1969 Firebird 350 convertible, t-5, Carousel Red
2008 Solstice GXP 5speed manual, Sly
2008 Grand Prix, Ink Slate, Winter daily driver
2009 G8, Switchblade Silver, summer daily driver
 


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