Tool for testing sealing of interface between wall of cylinder head and guide wall, has insulating unit or seal that is utilized for insulating top end of guide valve, and injection channel that is utilized for pressurizing top end

摘要

The tool (10) has a hollow body (11) that is able to be placed in a housing that is intended to accommodate a valve rod. A cylinder head comprises a thrust unit on which the body is arranged in a water-tight manner. A centering rod (13) is allowed to slide in the body until a test position. An upper end (14) of the centering rod is crossed by a guide valve. The guide valve is arranged with a top end. An insulating unit or seal (31) is utilized for insulating the top end of the guide valve. An injection channel (27) is utilized for pressurizing the top end. An independent claim is also included for an interface testing method.