Thermostat cover gasket replacement?? 72 Evinrude 18hp

[whitejd12]

Hey everyone,

I received my new thermostat housing gasket. Just wondering if I need to use any gasket sealant or anything, or just put it in with nothing. I have Permatex Black silicone adhesive sealant. Should I use that, or something else or nothing? Happy Easter!!

 

[Bosunsmate]

Re: Thermostat cover gasket replacement?? 72 Evinrude 18hp

I never have on those thermostat housing gaskets unless the engine case is really pitted.
I sand the housing down flat on some glass if needs be.

 

[Bosunsmate]

Re: Thermostat cover gasket replacement?? 72 Evinrude 18hp

If you can get away with not using then thats way better, only use it if its really pitted and the gasket is a thin one.

 

[whitejd12]

Re: Thermostat cover gasket replacement?? 72 Evinrude 18hp

The gasket looks like top quality. It's a full 1/16" thick. The housing and housing cover look good. I'll just clean them up with some sandpaper then and go "naked" on it. Thanks a lot!!