Recently found No1 spark plug well to be full of oil, assume it is a leak from the plug seal. Any tips on changing the rocker cover gasket? I read it is best to use a bit of sealant on the left side? Torque for cover bolts? And anyone got a spare working HT lead as that one maybe broken down after being immersed in oil (20V NA).
Ive just reread this and it’s highly likely oil which has spilled during top ups, it just runs straight into cylinder 1 spark plug recess. I had this in my Coupe and switched to a funnel when topping up.