hello everyone, how to solve a leaking thermostat in an NFU engine? There is already a third thermostat in the space of 3 years, and after a year the seal degrades so much that water flows through, in the photo you can see the original thermostat at the top left, there the seal is good (even after years it extends beyond the edge of the plastic) but the other two - the seal is broken - it does not spring, after year, the seal is flush with the edge of the plastic - it cannot seal........ Mahle and Calorstat brand thermostats,
just buy a new gasket? -we were watching and is it either Ajusa or Erling? I have always cleaned the area... put some sealant, if so what exactly? There were also metal thermostats, the sealant would have been fine, but with this plastic one? thanks for the advice if someone has already solved it.....thermostat code 1336Z0, gasket code 1609070880.