So…cruising along my 4.6 with just over 80k it decided to eject #3 spark plug. I had a reputable speed shop install a timesert and now that it’s up and running I have what sounds like valve tap on the right side. Noise is louder once warmed up and comes and goes. I’ve pulled the right valve cover and began to inspect the rocker arms and lash adjusters but one thing I noticed which keeps making me think, when the tapping noise is there it’s really audible by the right front tire making me think it’s an exhaust manifold leak. It’s not down low like rod knock. I can only think when the plug blew out maybe the raw fuel caused the manifold to crack or gasket to blow out. My question is would there be any easy way to rule out a crack or leak or do I need to drop the k-member to drop the exhaust manifold or will I be able to take it out with taking out the H pipe and starter? What’s it gonna take?
thanks in advance.
thanks in advance.