I recently installed a new carbon/kevlar clutch disk, I already had an upgraded pressure plate. I had barely finished running it in when I had to pull the engine to fix the headgasket. Now, it looks like the clutch is gripping more on one side or something, as you can see in the picture half of the flywheel and the adjacent part of the pressure plate have some big heat marks on them, and the other half looks brand new! Any ideas why this could be happening? And should I be worried?