I have an older Cobra (#373 Sept '98) and have not been able to locate the drain petcock found on most radiators. Up till now I have just pulled the bottom hose to drain the rad. I want to install a
Zinc Anode in the rad and the preferred spot is to remove the petcock and replace with 1/4 NPT
zinc anode.
I hope I do not have to pull the fans and shroud to do this.
Any imput?
Ray