Hi Joe- thanks a ton for those pictures. I have a 25, and we are planning on jacking the boat up to get the board out. Was wondering how it all fitted up in there. If the pin is worn, where does one get a newer one? Is it just delrin or similar?
Would an impact wrench work well to get those screws out? Do the shims jam up?
Also, I seem to have a horizontal crack in the trunk, left side, about 2-3" off the bilge bottom. It seeps slowly, or did until I put a coat of 4000 on it (was dry the rest of the summer- amazed me!) . That material in the keel is epoxy, I think, and I was wondering if you or anybody had any idea as to HOW that could crack - it's pretty thick.
Then , how could I fix it?
I'm thinking I could drill a hole in the crack area, then inject thick epoxy with a nozzled squeeze bottle. Would be working with a mirror, but I think it's doable. (might have the wife do it- she's a dental hygenist, and is used to working backwards !)
Hi Ritdog,
It was my pleasure. I learned a lot about the inner workings of the O’Day keel/centerboard from picking Rudy’s Brain but I really have to give credit to the guy on this forum who drew that sketch of the plate/wedge, pin setup. He provided the sketch and one of the pics of the actual parts. After I viewed the sketch I could see the fog roll away and that’s when I had a better understanding of it.
Rudy at D&R Marine carries the parts to the centerboard including the fiber pin.
http://www.drmarine.com/about.asp I’m not sure what that pin is made of. He gets about $9.00 for them.
When I removed my centerboard several years ago my pin was in good shape so I reinstalled it. I suppose that a pin can get worn if the owner is in the habit of leaving his centerboard down when the boat is not in use which is a bad habit, I think.
I used an impact driver to remove two stubborn bolts and it took me quite a while to remove them without breaking them. It’s hard and very tiresome trying to swing a hammer under the keel. A cordless impact drill/driver would work a whole lot better. I borrowed my son’s Makita to remove a frozen machine screw from the bottom of my mast and it worked great. You could try putting a Phillips head screwdriver on the head of the screw and adding a little heat to the shaft of the driver. Sometimes that works especially on corroded screws on an outboard where Aluminum is involved.
Rudy told me that there are two bronze plates embedded in the lead in which the bolts thread into. This is always good to keep in mind just in case you break a bolt and need to redrill it.
When you say shims I assume that you are referring to the wedges. The wedges are adhered with ordinary polysulfide adhesive caulking and you must use great care in removing them. I used a fish fillet knife and a 1” putty knife to remove them and the secret to doing it is with heat. I heated the blades with my torch and stuck them into the caulking and cut them out.
I ran two long lines over the top of the cabin and under the keel and tied them I such a way with Bowline knots on one end and a round turn with a half hitch on the other and was able to let the lines off while laying under the keel. I also used a short piece of strapping with a “V” notch at one end to hold the centerboard from the ground. After you clean all the caulking from the slots there’s nothing to prevent that board and pin from falling out of there and I needed to hold it with something.
That crack way up in the keel slot is puzzling. Could the pendant line shackle have caused this damage? Maybe the shackle got caught in the keel slot restricting the board from going all the way up and when the keel was placed on blocks something had to give. I had my pendant line shackle get caught in the keel slot one day and it just bent the shackle out of shape.
One of my friends has been using that new West System Six 10 Epoxy on his O’Day 30 and he swears by it. He used it to fill a gap in his keel. A regular caulking gun is used and there’s no mixing involved. The only problem is getting the epoxy up inside the 13” keel slot. Perhaps a small diameter vinyl tube could be used at the end of the spout. You may be able to Mickey Mouse a Nylon 90 degree fitting on the end of the tube. The area needs to be cleaned inside with Acetone to remove the mold release wax.
A Dremel Tool can come in handy for a job like this. My Dremel came with a long flexible shaft that could possibly reach up inside there and widen the crack enough to fill it with epoxy. When it comes to tools needed, a Dremel Tool is a “must own” for the boat owner who does his own maintenance. You can borrow a cordless Makita from a friend but by all means go out and buy a Dremel with all the attachments.
When I removed my board I cleaned the keel slot good and gave the inside two coats of Super Shipbottom Ablative bottom paint. I left the grooves where the wedges go,-- bare. The wedges are adhered with a good caulking like 3-M 4000 or 3-M 4200. After the centerboard and wedges are in, you can paint the outside of the wedges. This is what I did.
After the board was installed and the wedges were caulked and in place, I think that I jammed two sticks between each wedge and the centerboard to get the wedges where I though they needed to be seated. Then I waited for the caulking to set up before I installed the wood screws into the bottom of the wedges. I had to reconstructed the wedges with epoxy a little bit prior to that and I had to redrill the holes for the wood screws later. So that’s about it.