NEED HELP! - 203* Thermostat wont seal - Ford Powerstroke Diesel Forum
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Old 09-01-2012, 01:36 PM
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NEED HELP! - 203* Thermostat wont seal

I am trying to install the new 203 thermostat and aluminum houising but I cant get a good seal on the housing.

A gasket cam with both but I am only using the one under the thermostat. Am I supposed to be using one between thermostat and housing?

ANy advice greatly appreciated!
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Old 09-01-2012, 04:55 PM
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Check the directions. I believe it should indicate thermostat in the hole, gasket, then the housing sanwiches it all together nicely. Watch your torque. I believe 15 ft lbs.. Just did it a week ago worked fine.

Last edited by Gchapell; 09-01-2012 at 05:01 PM.
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Old 09-01-2012, 06:13 PM
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I used gasket maker to do mine.

I made my Samsung SGH-I997 send this.
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Old 09-01-2012, 07:04 PM
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Quote:
Originally Posted by Gchapell View Post
Check the directions. I believe it should indicate thermostat in the hole, gasket, then the housing sanwiches it all together nicely. Watch your torque. I believe 15 ft lbs.. Just did it a week ago worked fine.
No instructions came with it. I will try it tomorrow! THank you.

I thought gasket went below. Duhhh!

Thank you for the help!
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Old 09-02-2012, 07:12 AM
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I had to use rtv to get mine to seal properly, or else it would always have a little dribble...
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Old 09-03-2012, 02:43 AM
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Quote:
Originally Posted by Zaairman View Post
I had to use rtv to get mine to seal properly, or else it would always have a little dribble...
same with mine
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Old 09-04-2012, 05:49 AM
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I torqued the billet aluminum housing to spec and it does not leak a drop!

Replaced hoses, flushed x2, installed 203* thermo and coolant filter from DieselSite and refilled with Rotella ELC!

She is happy!

Thanks to everyone for the responses.
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