Re: old oil, or water in oil...chocolate color
It turns out I had more then just the manifold crack. I also had a crack in the block, on the port side, directly under the manifold near the power steering cooler. If you do a search for water in oil, you'll see some of my recent posts.<br /><br />To answer your question, my manifold crack was underneath the manifold slightly forward of the carb area. <br /><br />If you've got water in your oil, its likely either the manifold, riser, head or block,... unless your engine area was under water and it seaped in somehow.