jakey wrote:3.0 Head gasket would be covered? Mine will be fixed hopefully within a month. I'd hate to get it fixed and then same problem happen again. If this is covered I would possibly have your babies as my confidence will go through the roof.
Great to see you moving up in the world!
Known engine issues wont be covered
Based on the O2 sensor on one side of yours being 'colder' heater resistance, I suspect it was on its way out pre-tune from the radiator fan high temps, just the added torque increased cylinder pressures to widen the hole to a noticeable level. Yours is literally the ONLY H6 I have ever done that has blown a headgasket. Assuming the engine is assembled correctly with clean/true tolerances, there should be no reason for concern in future. Happy to tame down the torque if you like?

