I was wondering if anyone has an idea of the tolerance for my timing chain cover surface? I have it off the vehicle and had to repair a hole. The weld went onto the flat mating surface of the water pump and was ground off by hand with a handheld grinder. The surface is nowhere near perfect (surprise surprise) with maybe a 32nd showing under a straightedge where the weld material was ground off. Question is should I be concerned about a leak or would the gasket/gasket sealer take care of any imperfections?