Thursday, June 2, 2011

When changing the thermostat is it a must to?

put sealant on the gasket? Or do you even put sealant on a gasket? And about how much do you use? I just took off the thermostat housing and there was no thermostat in there. I guess that's why it always ran cold. So Im not positive how the thermostat goes in the housing. Should the spring part be facing down, away from the upper radiator hose? The car is a 1997 Dodge Intrepid 3.5 liter.When changing the thermostat is it a must to?
Ok.. the thermostat spring portion should be positioned so it's inside the engine block. It's really the only way it can go in.

If the gasket is paper material, then DEFINETELY use a gasket sealer on both sides. If you don't, you run the risk of a leak and get to do the job all over again.

IF the gasket is rubber, you put nothing on it. If the gasket is an o-ring only, you put nothing on it.

ONLY if it's a paper gasket.When changing the thermostat is it a must to?
The spring faced downward.

The upper half of the housing is likely too small to accommodate the thermostat if it's improperly installed.

Use only a gasket, no sealant ever.When changing the thermostat is it a must to?
the spring goes towards the engine, the pointed end goes towards the radiator,and you probably wont have to use a sealant on the housing if its in good shape,it never hurts though to check it and add some if needed,i usually don't have to use it on those car though they seal up pretty good,good luck.When changing the thermostat is it a must to?
Dodge man and eric are right, and no sealant if gskt is rubber and if you used paper yes sealant and use a thin amount both sides. You don't want excessive sealant getting into the thermostat

Good Luck

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