Zetec Thermostat Housing

[Al Milton]

Hi All,

 

Went out for a little run in the sun today and noticed the car running a little hotter as the drive progressed.

Got home, and noticed a little puddle of coolant under the car around the rear of the engine.

Once the engine had cooled down, investigation found a small leak from the thermostat housing (90 degree bend to upright) to engine flange - it's the gasket that has started weeping!

 

When I replace the gasket (will get some gasket material from work tomorrow), is the general consensus to use a sealant on either side of the gasket / just use the plain gasket or alternatively just use sealant?

 

Sealant won't be normal silicon, i'll get the proper stuff from a motor factors.

 

Any thoughts?

Cheers

Al

[Al Milton]

That is sort of my thoughts Richard, gasket smeared with some sort of sealant

[Al Milton]

I've just looked at the spec's and it seems good for 200 degrees.

As you said, a thin smear and this should prevent lumps from breaking off.

 

Thanks for the heads up Richard

[Guest mcramsay]

I personally don't use sealants and gaskets together, it's either one or the other. You can actually create a leak path/ damage the gasket when using the two together. At most I put a thin smear of grease on the gasket, which allows it to peel off when taking apart the next time