Originally Posted by MikeE
I like the listening stick concept,I sometimes use 3/8 extensions. What H/R says sounds like a logical approach. Insure you have oil pressure and then listen to all the externals, fuel pump, water pump and do the clutch trick. Watching the valve train while running will tell you if everything is getting oil on the top and you can check your clearances quickly. My shot in the dark diagnosis is that something is banging on a cover, either valve or side cover. I don't know how this could happen, but you never know wht you are going to find. I don't know the answer to this but could a wrong sized valve cover be the problem? Is that even possible?

I think if it was the wrong height valve cover it would sound lot noisier as all the rockers might come in to contact with it.

I can explain it to you, I can't understand it for you.