I am trying to replace the hatch on my 222. I have removed the screws that hold the two sections together. Can anyone tell me how and what to use to dissolve the caulking that holds them together?
Thanks
That's an easy one. Been there and done that at least a couple of times.
You're going to need a blow torch to heat the blade of your putty knife or whatever you can use to separate the caulking. Hot air from a hair drier applied to the flange could hasten the process of loosening the caulking. I used two putty knives. One with a wide blade and another one as a wedge to keep the flange open as I ran the other putty knife into the caulking between the flange. I also use a long thin blade knife that my father in-law made years ago for cutting meat. I was able to heat the blade and work it between the hatch flange and the forward deck opening. Try to use the heated blades to work them into the caulking in between the flange and the hatch opening. Luthiers have used this process for years in removing the necks off guitars bonded with hyde glue. I figured that if it works on a guitar neck, it'll work on a hatch.
The first thing you need to do is remove the cover and you can do that with an Allan wrench and for removing the pins, a long thin drift pin punch with a hammer. These small pins have tiny ridges that are designed to bite into the plastic part of the hinge and also the adjusters, so they need to be removed from the side where the ridge is.
There is also a square ring that fits over the flange of the hatch inside the cabin that will need to be removed.
One of my friends just bought a new hatch of Rudy at D&R Marine for his 86 O'Day 222 last week and he had some guy at his marina install it for him.
I rebuilt my hatch from a similar used hatch that I bought off Rudy several years ago. The first time I had problems with my hatch, the lens cracked, so I went to a plastic lens factory in my area and had the guy cut me a new one out of a thicker lexan and I installed it myself.
Then one of the hold down knob parts on the cover broke and that's when I rebuilt it again with the hatch that I bought off Rudy. Only the lens had a tiny crack, so I used the Lens that I had bought and rebuilt the hatch.
You're going to need Dow Corning 795 caulking for your new hatch. I wouldn't use silicon because it really doesn't stick all that well even though it's kind to to plastic. Polysulfides are harmful to plastic so you don't want to use that either.
There's no doubt about it. Gray Marine hatches were junky but I've managed to keep mine working by cleaning the metal bolts and keeping them lubed. I keep reminding my grandchildren to be careful of the hatch and don't stand on it. The DC 795 tube that I bought off Rudy has lasted many years. I just used it three weeks ago when I installed a small Beckson Deck Plate in my fuel locker and also two fair leads on my sliding hatch to tie off my Stern's Sun-shower bag. The deck plate gained access to a small jam cleat that I just installed near my stern rail for my CDI Roller Furler. As long as you seal the caulking tube good and store it in a cool place, it will last for years. Good luck with the hatch!
Joe