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munkymush
09-30-2012, 06:18 AM
hi,can anyone tell me about the 350 mcx thermostats. when i replaced mine recently with a new 160 deg.. i noticed theres a fairly deep circular recess where the stat fits ? and i was wondering if the stat should have a sealing ring or something there ?? to stop water bypassing the stat?

medicmoose
09-30-2012, 07:24 AM
There should be a black rubber ring around the largest diameter portion of the t-stat.

munkymush
09-30-2012, 08:13 AM
hi thanks for that .. mines never had a seal on it and the new stat didnt come with one from mastercraft either.. does anyone know the part number for this seal ? thanks glenn

mikeg205
09-30-2012, 10:13 AM
If you can't find the rubber gasket you can try this stuff ...
http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_the_Right_Stuff_Gasket_Maker.htm

Hey Medic..was this the what the gasket looks like on the MCX t-stat? below?

http://www.skidim.com/prodinfo.asp?number=RP026002F

medicmoose
09-30-2012, 12:05 PM
If you can't find the rubber gasket you can try this stuff ...
http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_the_Right_Stuff_Gasket_Maker.htm

Hey Medic..was this the what the gasket looks like on the MCX t-stat? below?

http://www.skidim.com/prodinfo.asp?number=RP026002F

It's been a while since I looked at the MCX t-stat...but that seems to be what I recall.

CantRepeat
09-30-2012, 12:49 PM
If you can't find the rubber gasket you can try this stuff ...
http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_the_Right_Stuff_Gasket_Maker.htm

Hey Medic..was this the what the gasket looks like on the MCX t-stat? below?

http://www.skidim.com/prodinfo.asp?number=RP026002F

I would go with the correct part over the permatex stuff.