I just googled Yanmar YSM12 an got several hits. Here is one
http://www.ship468.org/boats/Catalina30/YSM12/
Good luck on your project.
http://www.ship468.org/boats/Catalina30/YSM12/
Good luck on your project.
Thanks Scotty. I found the service manual online at boatinfo.com but like yours a lot better.I just googled Yanmar YSM12 an got several hits. Here is one
http://www.ship468.org/boats/Catalina30/YSM12/
Good luck on your project.
You have a "Schaffer" luff style roller furler. it has its own drum that attaches to the tack and the sail is hoisted in the rolled up position just aft of the head stay.It will also have a "Top swivel" with two metal elongated hoops that attach to the head stay. They do work but it is mandatory that you have a lot of halyard tension or it will not roll well. It will also "Sag" quite a bit going to weather but they do work and are very simple.Forgive my question about roller furlers but this boat I am buying has one and I never had one on my catalina 22 and don't know beans about them. I never got to see the actual furler since it was stored in his Dad's house and wasn't on the boat. The owner doesn't know anything about it either. I rolled out the genoa and it has what seems to be a large cable sewn into the luff with grommets on the top and bottom. I guess my question is, what am I looking for when I check out the furler this weekend?......just a drum that attaches to genoa's tack?. Does the head attach to the jib halyard?. I thought the genoa rolled up on something other than itself. I ask since the previous owner says he only has a drum.
My top swivel has the elongated hoops but also has a block attached at the top. I am kind of confused what this block and line is for. Does it not use the jib halyard?You have a "Schaffer" luff style roller furler. it has its own drum that attaches to the tack and the sail is hoisted in the rolled up position just aft of the head stay.It will also have a "Top swivel" with two metal elongated hoops that attach to the head stay. They do work but it is mandatory that you have a lot of halyard tension or it will not roll well. It will also "Sag" quite a bit going to weather but they do work and are very simple.
The halyard should hook up directly to the top of the swivel. I have never seen a block on the top of a swivel. I wonder if the block and line are for the Roller furling part of the unit. There will be a Drum on the bottom with line wrapped around it.....if there is no line maybe the mystery line is for the rolling up of the sail and possibly the block is to lead the line off of the drum to a proper angle on the bow section of the toe rail.My top swivel has the elongated hoops but also has a block attached at the top. I am kind of confused what this block and line is for. Does it not use the jib halyard?