The Madison Group Info@madisongroup.com madisoongroup.com What Went Wrong? The fuel filter in a gasoline engine application was leaking while in service. Failure was occurring near a welded joint in the part. The Madison Group 2615 Research Park Drive Madison WI, 53711 USA Ph: (608) 231-1907 madisongroup.com Evaluation Pressure testing of the fuel filter revealed failure occurred near the housing shoulder weld. Visual and microscopic examination of the fuel filter revealed no evidence of cracking or deformation at the failure location. A leakage flow path was apparent near the housing-to-cap weld. This leak path occurred coincident with a knit line and a

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