Here we go, the original housing has been giving me grief for the past few years, pitted and not true, so I ordered a replacement - original style from Ames.
Installed it and used a gasket and RTV (like I always have) and it's still seeping coolant.
I've installed hundreds of thermostats without issues - any tips or tricks for our cars?
Maybe just RTV and no gasket?
Thanks!
After market chrome ones are bad. Stock pot metal ones bend and can be warped. Get a metal file and file the bottom to remove any warping issues. Put Form-A-Gasket or equivalent on the intake. Put it on the housing as well. Place gasket on intake. Snug it up but not fully tightened. Let it setup ~30 mins Then tighten it up some more. You don't need to have it REALLY tight as i just bends. Try that and if it leaks tighten the housing a bit more. Important to get the right stuff. There are many types of form-a-gasket products out their for different citations. Some work for oil pans but not for water. I used a blue form-a-gasket product. You can do it without a gasket but you have to be careful to not to squeeze too much out when you tighten.