Could someone post the thread for the injection pump timing if you find it? And Phil, are you suggesting maybe bad head gasket? I haven't noticed any oil or coolant where it's not supposed to be. And I made sure to put the heat shields in the right way in the injector holes. I was almost sure that the heat shields were the problem because #4 injector didn't even have a heat shield in the first place! By no, stil runs the same