T-stat housing gasket leaking after changingT-stat
So, my radiator on my 88 had seen much better days, lots of pinholes, rotting cores, etc. I bought an upgraded 3-row radiator and figured I'd do the job right and get new hoses and thermostat while I was at it.
Well, got it all back together and used a thin layer of RTV Blue on both sides of the thermostat housing gasket and it was weeping when I filled the system back up :-(
Yes, I did clean the head and cover mating surfaces well, got rid off all the old gasket and corrosion. I even used brake cleaner to remove all traces oil oil, coolant, etc from the metal surfaces before putting it together.
It was leaking from near the bottom bolt the best I could tell.
Is there some secret?
Use gobs of RTV(seems like a bad idea and good way to get a lump lodged in a coolant passage somewhere)?
Do I need to cover the threads of the bolts with RTV? I did NOT do that, although I think we may have done that when I did the water pump on my 300ZX.
Off to the parts store to get a new gasket now......