Take the assembly apart. Clean and wipe down inside areas. Make sure any remaining sealant around edge is removed. Gearcase oil comes in one basic size (approx 16 oz). Add the whole container and then add a bead of silicone sealer around edge (not too much-sealant should be the kind that remains flexible-also, sealant does not need to cure before use). Put everything back together and you should be good to go.
Jean
March 2007