I am new to boating, so bear with me, i recently purchased a 1993 excel 20 sx with a volvo 4.3 sp out drive. I noticed the last time i was out that the trim was bleeding off under acceleration. I pulled boat out and raised trim, within about an hour out drive was down all the way down. I've read a few similar post on here but i have 2 questions, i do not see any leakage around rams, i pulled trim motor out and noticed water in trim hoses and resevoir, if rams/cylinders are drawing in water shouldn't they be leaking out also?? second question, should there be an oring between power trim valve body and resevoir there wasnt one when i took it apart, any help will be greatly appreciated.