I have all of the parts (purchased from an OMC dealer) to replace my thermostats. My question relates to the round cork gasket that fits into a groove in the plastic valve body. It sticks above the surface of the valve body by about 1/64" The thermostat sits on top of this gasket followed by a gasket that goes over the entire valve body. It would seem that this might prevent a good water tight seal unless this cork gasket compresses a good bit. I suspect that this is the way it was designed but it just dosen't look right. <br /><br />Am I looking for a problem that isn't there?<br /><br />Thanks,<br /><br />Howard - Miami Fl