Here is a picture of the underside of my 34 V8 engine. Notice the 4 Holes that are hidden when the Sump is on. When you remove the Sump (Pan), make sure that you remove these 4 Plugs, and poke wire or similar up the holes to disturb all the buildup of sludge, scale etc. You will be surprised at how much rubbish gets trapped in there. Hope that this picture helps. Mercman <><