Long story short, I’ve done the head gasket in my ej207. I timed the motor correctly and followed all procedures. The first time I started it, let it run and it died. I checked timing and it was out. Thinking it was a failed tensioner, I replaced the tensioner and re timed the car. Once again I let it run, killed it and now all the marks aren’t lining up. Any ideas as to what’s wrong?