Text from page 23 of catalogue Cylinder head gaskets
Page 23 of catalogue Cylinder head gaskets of Reinz-Dichtungs-GmbHA SPECIAL CASE: THE STOPPERLESS GASKET
Function With a stopperless head gasket, the area between the combustion chamber and cooling water jacket is sealed exclusively by means of full beads around the combustion chamber. Design In general, increased sealing gap movements occur with a stopperless head gasket. In order to ensure a long service life despite these movements, the forces are distributed over several layers. In this case, the bead must be of a special design. Properties During installation, the beads are strongly compressed. Force transfer around the combustion chamber is low. This results in lower component distortion with simultaneously reduced oil consumption. Application Stopperless gaskets are used primarily in Gasoline engines with a rigid construction and low dynamic sealing gap movement.
Top sheet Elastomer coating Bottom sheet
MLS cylinder head gasket without stopper.