Plug the valve covers up and put some air in it and try soap bubbling the seal area. I know of several top shelf mopar engine builders who are ready to rip their hair out right now over these dang seals. Todd
Forgot to mention that--On attempt #4 I rigged an air fitting right where the sending unit comes out of the back of the block. I pressurized it with up to 5 psi and sprayed the crank flange--no bubbles. I realize I may have to pressurize crankcase but really at that point I may as well dyno it and bring it up to temp. I have already proven it a few times--no leaks until you rev it up @ temperature.Thanks though. J.Rob
