Re: sx-m penta trim seals??
i have the same problem-disassembled cyl today-the end cap has a scraper seal(visible) and an o-ring just inside(not visible until disassembled). i am going to attempt to crocus the rough spots at the rod and and reassemble with an o ring thats close from our transmission shop.also from the web-see below. fyi-my trim cylinders even with leakage and water intrusion were working fine.let me know if you struggle with the end cap removal and i will help you. home made spanner was useless.
i copied and pasted the following from the web
Volvo does not officially offer a reseal kit for the SX trim cylinders. With that said, OMC does offer a reseal kit which I'm told will work to reseal the SX trim cylinders as the OMC cylinders were virtually identical. As a Volvo dealer, we do not reseal Volvo trim cylinders as that is not an approved method of repair, but one of our parts dept. personel advised me that he has sold the OMC trim cylinder reseal kits over the counter to other shops/individuals that will reseal Volvo trim cylinders.
It's worth a try, the OMC trim cylinder reseal kit part number is 985060 (cost is $27.25 plus tax) compared to a new Volvo SX trim cylinder which is ($472.50 plus tax each). I opened up one of the OMC reseal kits and it does come with instructions to reseal the cylinder. You will need a spanner wrench to remove the end cap of the trim cylinder to remove it and the inner rod to replace all the orings necessary.
I strongly suggest getting the cylinder repaired or replaced as soon as possible, if water is getting into the trim system due to the faulty seal, it may ultimately ruin the trim pump (expensive).
Read more:
http://www.justanswer.com/questions...-3-i-o-with-a-cobra-sx-outdrive#ixzz0lyIwGqCt