um i think there is nothing really that you can do about it other than get a spare motor. the v-spec isn't an overly exspensive motor so i would say once you get to about 8-9 gallons then get a new motor it will cost only a little less to replace all the internals so why not go the extra yard. but you could sell your motor now and gain money and buy a new one. there is no harm in doing that as long as you say what it has done etc.