Packing assembly for sealing between cylinder head and cylinder head cover gasket

A packing assembly for sealing between an edge surface of a cylinder head and a surface of cylinder head cover gasket at a site where the edge of the cylinder head which is to be confronted by the cylinder head cover gasket is provided with a notch having a wall surface providing a profile of a predetermined shape, this surface having two perimetrically opposite ends and opening towards the cylinder head cover gasket,

• said packing assembly comprising:
• (a) a relatively rigid member including a body having a perimeter with two main portions, including a first portion which is shaped generally complementarily to said wall surface of said notch, and a second portion which is shaped generally complementarily to said cylinder head cover gasket surface, each of these main portions having two respectively perimetrically opposite ends, said body perimeter further including two relieved corner surface portions, each joining a respective first and second main portion of said perimeter and thus providing two respective recesses;
• and
• (b) an elastic member having a thin portion with a respective thick portion disposed at two respectively opposite ends of said thin portion, said elastic member being perimetrically disposed upon said relatively rigid member with said thin portion overlying said second portion of said perimeter of said body and said thick portions respectively overlying said corner surface portions in said recesses, so that when said body is received in said notch, said elastic member, as to both the thin and thick portions thereof, is positioned to be elastically deformed by confrontation with said cylinder head cover gasket surface as said cylinder head cover gasket surface is urged against said edge of said cylinder head.