thermo gasket

[maddzz1]

I have always just used the gasket shellack (in the brown bottle). Is it better to use the blue RTV?

[Wildman]

If your talking about Indian Head shellac, your dating your self :D

 

Don't ask me how I know :roll:

 

Plus it's only good for 'cork' gaskets, as a placement "glue" not a true sealant, and the rubber compound gaskets are much better in the long run.

 

That's has been, RTV is where it's at, can't be beat for gasket sealant ;)

 

I use Black (Hy-temp) RTV for everything.

[maddzz1]

I used it today (the shellac) when I put my new stat in. No leaks so far. With the black rtv do you put it on both sides of the gasket?

[mvusse]

My stupid @$$ decided to check out the thermostat 5 miles from home where the gasket was. Black RTV is the only thing I happened to have in the truck, so I used it without a gasket. Black RTV on one side of the housing, put it in place and fasten the bolts. 500 miles and 3 weeks later it's holding up good without any leaks.

 

I think coolant is the *only* thing not leaking on this truck.

[Wildman]

Yea, I use the RTV on both sides, first on the "housing" side, set up some to hold the gasket in place, then on the face just at time of install.

 

http://www.partsamerica.com/ProductDeta ... yCode=2132

 

Been getting it in the pressurized can the last couple times, much better ;)

[TNT]

I use 3M super weatherstrip adhesive to hold the gasket to the t-stat outlet and if I would use anything on the other side it would be some grey Mopar RTV.

 

Because of the rough texture on the t-stat outlet I use a very thin coat of the 3M all the way around. If the block cleans up great I won't even seal tht side. The 3M super weatherstrip adhesive also does a good job of holding the thermostat in place when used in a couple spots.

 

I port the T-stat housing on my 4.0 Jeeps. I also use Robertshaw style t-stats for their accurate open and closing control and the fact they increase the amount of flow allowed when fully open.

 

As an ex mopar tech I use the 3M super weatherstrip adhesive(yellow gorilla snot) to hold gaskets in place quite often. It was also used by 90% of the other techs I've worked with. In most cases a few spots of it will hold a gasket in place. It also work good for making sure the gasket stay on the side you want it to if you need to remove that part later.