carolynrose
Petty Officer 3rd Class
- Joined
- Oct 29, 2008
- Messages
- 99
I know this subject has already been hashed over, but I had some thoughts I thought I'd throw out there. My boat is a 1988 Bayliner Ciera Convertible with a 260hp OMC sterndrive.
This past summer I had a hydrolock while docking into a hard current and wind.
I hope to avoid this again. Here is my idea.
I'm going to purchase a Mercury shutter valve and ring type retainer and try to retrofit it to my Y-pipe. I understand that OMC shutter valves are at the very bottom of the Y-pipe. I'll discover this for sure when I pull my outdrive for the winter. Either way they are not serviceable without pulling the Y-pipe which means pulling the engine. I fully expect to find these gone do to the age of the boat.
Mercury now installs these at the top of the Y-pipe and are accessible by pulling the lower bellows. They are available in several sizes.
Does anybody have knowledge of a better option or some kind of retro-fit kit. I know Volvo has discontinued the shutter valves, but I don't know that they haven't set the exhaust better than OMC so to avoid hydrolock.
This past summer I had a hydrolock while docking into a hard current and wind.
I hope to avoid this again. Here is my idea.
I'm going to purchase a Mercury shutter valve and ring type retainer and try to retrofit it to my Y-pipe. I understand that OMC shutter valves are at the very bottom of the Y-pipe. I'll discover this for sure when I pull my outdrive for the winter. Either way they are not serviceable without pulling the Y-pipe which means pulling the engine. I fully expect to find these gone do to the age of the boat.
Mercury now installs these at the top of the Y-pipe and are accessible by pulling the lower bellows. They are available in several sizes.
Does anybody have knowledge of a better option or some kind of retro-fit kit. I know Volvo has discontinued the shutter valves, but I don't know that they haven't set the exhaust better than OMC so to avoid hydrolock.
