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Old 06-02-2005, 07:20 AM   #1
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Default Replacing thermostat

I bought a 180 thermostat and a new gasket for the housing. Looking at the Chiltion'* book says there'* two gaskets, an upper and a lower. If I"m pulling the housing I don't want any leaks. Should I be replacing both gaskets?
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Old 06-02-2005, 08:06 AM   #2
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Two gaskets....YES

There is a rubber gasket that the thermostat sits inside of....and there'* also paper for the t stat housing.

You'll have dribble if you don't do both. Good call and research.
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Old 06-02-2005, 02:57 PM   #3
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Thanks Bill, off to the parts store I go.....
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Old 06-02-2005, 03:06 PM   #4
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Not that I recommend it, but you can run without the rubber t-stat gasket. I didn't know there was one when I did my then girlfriend'* 93 SE. It never had any overheating problems or leakage.
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Old 06-02-2005, 03:59 PM   #5
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easy install and yea there are 2 gaskets and i learned first hand that you will dribble if you dont replace both!!
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Old 06-02-2005, 04:44 PM   #6
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RTV I used that with the old one... I didnt feel like puting things back together. Its been 1 1/2 years with no problems.
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Old 06-03-2005, 06:29 AM   #7
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Do you put the seals in dry or do you RTV them? I'm buying the other gasket today.
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Old 06-03-2005, 09:59 AM   #8
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Quote:
Originally Posted by 95seand78z28
Do you put the seals in dry or do you RTV them? I'm buying the other gasket today.
I don't know if this is what you are supposed to do...

But I put the o-ring in dry, I figured the coolant would take care of making that one moist and supple.

I don't know what RTV is....

But the paper housing gasket, I put a very thin layer of silicone...and have had no leaks yet.
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Old 06-03-2005, 10:05 AM   #9
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Quote:
Originally Posted by Logan
Quote:
Originally Posted by 95seand78z28
Do you put the seals in dry or do you RTV them? I'm buying the other gasket today.
I don't know if this is what you are supposed to do...

But I put the o-ring in dry, I figured the coolant would take care of making that one moist and supple.

I don't know what RTV is....

But the paper housing gasket, I put a very thin layer of silicone...and have had no leaks yet.
RTV is silicone sealant (gasket sealer). Nice 94!
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Old 06-03-2005, 11:27 PM   #10
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Both go in dry.

RTV is a gasket making material... no need on a nice easy access spot like a t stat. Plus it'* eaiser to clean up later if you ever want or need to change again.
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