Metal gasket for use in engine with chain case

The present invention relates to a metal gasket for use in an engine with a chain case and more particularly, relates to a metal gasket for sealing a three-surface joining portion defined by a cylinder head extended along the chain case, a cylinder block and the chain case in the engine with the chain case. A metal gasket used in an engine with a chain case, using a foam-rubber seal member shaped to withstand in practical use and having excellent long-lasting reliability and excellent durability. A total constitutive plate of the metal gasket is extended along the chain case to form an extended part. This extended part has a chain case hole. The foam-rubber seal member seals a chain case opening and a three-surface joining portion defined by the chain case, a cylinder block and a cylinder head. The foam-rubber seal member is a separate and distinct member and is a sheet-like and loop-like combination of layers of foam rubber and a metal core plate interposed between these foam rubber layers.