Monday, September 27th, 2010 AT 9:49 PM
Hi, I was under my valve cover the other day and seen that someone had put gray silicone under the rocker arms on top of the valve springs. I was wondering why this would be? It's a diesel and could it be someone thought they were making it quieter? I have never heard of this type of thing before. If anyone has heard of this or knows why this is I would appreciate feedback. Thanks.