Having pulled my oil pan I opened the gasket kit I purchased for re-installing it. Included is a thin copper washer which I suppose is for sealing the pick-up tube where it goes through the oil pan. When I disassembled my tube there was no washer under the big nut outside the oil pan but a thin fibre washer or similar on the inside sealing the tube to inside of oil pan. Where should the new copper washer mount, inside or outside of oil pan? Should sealer be used?
Thanks!