As I've only just done the cam cover gasket I checked the plug holes for oil.
Thankfully none but number one plug lead had a crack all the way down one side and two was melted out of shape. I knew one was in need of replacement due to oil contamination but I was shocked to see two had melted.
Could this be due to number one breaking down or do I have another problem?
On the up side we still managed to get home