THE 1.9 ENGINES DID USE A LARGE RUBBER GASKET BUT THE 2.3 AND THE 2.6 INLY USE THE HALF MOON SEALS AT THE END OF THE CRANKCASE. THEY MUST BE USED THERE THE REST OF THE SURFACE WHERE THE MAIN PAN BOLTS TO THE BLOCK USES SILICON SEALER, ,THE BOTTOM PAN ,THE SMALL ONE DOES HAVE A GASKET ON IT . JERRY