Thread: Overheating issue - absolutely stumped (Done almost everything)

im having this same problem.... except without a tstat i still run hot... but i gotta 180 tstat

Originally Posted by thomas mcnulty

like i said, i had the same issue on a 79 z28 i had. it was overheating really bad so i replaced the tstat, when that didn't work i fully rebuilt the engine (with a ton of goodies) and when i got it back on the road and it was still overheating i wiped out my brand new cam and all my bearings. after the rebuild (again) i replaced the radiator and never had the issue again.
before i rebuilt it the first time i ran it without a tstat just to be able to commute to work in it (it was not overheating minus the tstat)

K, going to pull that prick out this week. Once I get it out can I use a hose or something & flush the hell outta it through the filler neck? do i have to be careful on the pressure (ie. fins getting destroyed)?