I dont really know much about head gaskets, and the reasons you would or would not re-torque the head, and was hoping some of the guru's who really understand the function of this process might share some wisdom as many of us enthusiastic amatures do our own head gasket changes and rely on sometimes hopelessly abbreviated information like might be found in a haynes book of lies.
I remember one of my first fuego head gaskets did not last long on its original installation.
Now I do a re torque after a few hundred km, but dont really know whats happening with the gasket when I'm doing this.
One question that I have is when the say..20k km old gasket has breached in some way and showing bad signs, as well as adding chemi-weld products for a nasty short term fix, is there any merit in doing a head re-torque??
Will this make things better or worse???