Thermostat

[Xs SHO 1]

when replacing t-stats, does one use a "non-hardening" Form A Gasket Sealant made by Permatex? according to shotimes, there isnt a gasket when replacing the t-stat. any help is appreciated.

thanks

 

[pjtoledo]

The thermostat has a rubber O ring around it, there is no gasket. To prevent corrosion I coat the mating surfaces with some grease.

Perry Toledo,Ohio

 

[Xs SHO 1]

what kind of grease?

 

[pjtoledo]

xssho1:
what kind of grease?

Any kind of general automotive grease that can be applied in a thin film. The purpose is to coat the metal surface and keep outside water out. Has no effect on sealing the coolant it.

Perry Toledo,Ohio

 

[Xs SHO 1]

how about "non-hardening" sealant that i mentioned above?

 

[Yamaha V6]

You don't need sealant or any kind of gasket material when using the Motorcraft thermostat, as it comes with the rubber ring around the outside edge of the t-stat ******. When using a non-motorcraft, reuse the rubber edge ring from the previous one.

I recommend only the motorcraft personally, but there are a couple other brands that have been listed here on SHOForum - like the Shaw one, I believe.

I don't use grease or any sealant at all, and have had no problems to date. I've always used only the Motorcraft, though.

 

[Xs SHO 1]

on the motorcraft t-stat that i bought, it has "two dimple holes with loose pins" on it, does it matter if this goes upwards or downwards?

thanks

 

[Xs SHO 1]

nevermind, jiggle valve at 1200 position....