i bought the spark plugs before taking a look at the motor, and now i see that the old ones are in some kind of tubes too narrow for my old spark plug wrench to go inside. Is there a way to remove this tubes or do i need another wrench ?
I believe there setting down in the center of the valve cover & that tube is part of the valve cover ,you have to use a thin wall socket in order to get down into the hole to reach the spark plugs. I've worked on a few cars with the same problem.