Aug 15, 2013 #16 wildman7798 Full Access Member Joined Aug 7, 2013 Posts 214 Reaction score 1 Location Great Pacific NW Anyone out there have an answer as to what the metal slag is on the side of these GP's might be?
Aug 16, 2013 #17 Can30Diesel Full Access Member Joined Jan 8, 2009 Posts 770 Reaction score 14 Location Agassiz BC Since they are all in the same spot and the same shape I wonder if its swelling from the plugs?