Thermostat Gaskets

PANAVIA · #1 (**permalink**) 10-20-2010, 02:36 AM

I disagree, gaskets are mandatory. Your surfaces should be flat enough to only need the felpro standard. Set a straight edge across the surface as to determine if it is warped. Tourqe is 15-20 ft lbs max.

bobcowan · #2 (**permalink**) 10-20-2010, 09:52 AM

Quote:

Originally Posted by PANAVIA

I disagree, gaskets are mandatory.

Clearly not mandatory. On the Cobra, I'v been using Silicone only since the initial build. It has never failed. Althougnh I have changed the thermostat a couple of times in the last 5 years.

On my '66 Mustang, it held up for for about 15 years, until I sold the car. After the initial overhaul, I never removed the thermostat. The original silicone held up all those years.

CobraEd · #3 (**permalink**) 10-20-2010, 09:55 AM

Thinner/cheaper housings can warp under torque from the bolts and you will have a chronic leak. Make sure the surface is true and if not get a good THICK chrome aluminum housing from Mr Gasket for only about $15. I had a cheaper housing with a thinner flange and it always leaked due to warpage.

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