buffer (bÅ­f'Ér) Chemistry A substance that prevents change in the acidity of a solution when an acid or base is added to the solution or when the solution is diluted.
These Ford Racing Performance Head Gaskets are specifically designed for use with cast iron or aluminum cylinder heads on a Ford 289, 302, 5.0L, or 351 Windsor V8 engine.
Report Abuse. Usually there is a rubber gasket and a flat cardboard like washer. Putty goes on the top where the drain slides into the sink. From underneath push up the tapered rubber gasket, next the flat washer, and lastly the nut. Tighten.The flat washer allows the nut to spin against the gasket without turning the gasket itself.eport Abuse. Usually there is a rubber gasket and a flat cardboard like washer. Putty goes on the top where the drain slides into the sink. From underneath push up the tapered rubber gasket, next the flat washer, and lastly the nut. Tighten.