On the an900 gasket there is a flat side and a rolled side... which side should go to the aluminum housing, and which side would go out to the brass plug that holds the temperature sensor? And why for curiosity's sake?
Leads to another question: spark plug gaskets are stamped, which way do you put them on the plug? I always put them with sharp edges to plug but don’t know why, probably doesn’t matter.
Leads to another question: spark plug gaskets are stamped, which way do you put them on the plug? I always put them with sharp edges to plug but don’t know why, probably doesn’t matter.
Actually, every washer has a sharp edge and a rounded edge. Always put the rounded edge toward the base metal, and the sharp edge toward the bolt head or nut. You don't want the sharp edge marring your base metal. So you're doing it right with your plugs!