Back to gaskets, we recently made this batch of gaskets and fiber washers for a long time customer involved in outboard motor restoration. He supplied us with the ID/OD and thickness dimensions for the washers, and an old gasket for the gasket. The ring washers on the left were made from 0.5mm aluminum, the two blacks washers from a non-asbestos composite material, and the red washers from a fiber material. Upon receiving these he reported that they were perfect.
Original gasket on left, copies on right.
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