M17 Keel/Centerboard
Not sure what I had been drinking before a recent post, but a current inspection of the boat's keel confirms that the keel is in fact glass, and part of the original lay up of the boat. But I do notice that right above the interior opening for the CB trunk, the glass keel and trunk liner are separated in places, with small pockets up and down the seam, and hairline cracks....that looks like something that would allow water inside the keel cavity. Push on it in places and there is some visible movement. But since I'm not having trouble with a swollen keel now, and don't want to, the question is how to best cover up and seal these cracks? Water may already be in the interior cavity of the keel....so sealing it may seal water in. If you knew where the ballast was, one might be able to drill a small hole in the top and drip or pump in something like vegetable oil (protect iron from rust, but not matter if it leaked out into the water) in to displace the water. And last, but not least, how to seal the crack? I have all the epoxy products, and a polyester gel-like gap/crack sealer, but would not something like 3M 5200 smeared over the crack work just as well, if not better? Howard M17, #278
No vegetable oil!!. I don't think it would keep the steel ballast from rusting, and it would definately keep any future repair from sticking. Same for silicone. Boatlife might do the job, but I would prep the glass by sanding, then use epoxy resin and fiberglass cloth. I'm assuming that the area in question is in the INTERIOR of the boat and that the liner you are talking about is indeed the hull liner, as opposed to the centerboard trunk liner, underneath the boat. Jerry ----- Original Message ----- From: "Howard Audsley" <haudsley@tranquility.net> To: <montgomery_boats@mailman.xmission.com> Sent: Monday, September 16, 2002 1:26 PM Subject: M_Boats: M17 Keel/Centerboard
Not sure what I had been drinking before a recent post, but a current inspection of the boat's keel confirms that the keel is in fact glass, and part of the original lay up of the boat. But I do notice that right above the interior opening for the CB trunk, the glass keel and trunk liner are separated in places, with small pockets up and down the seam, and hairline cracks....that looks like something that would allow water inside the keel cavity. Push on it in places and there is some visible movement.
But since I'm not having trouble with a swollen keel now, and don't want to, the question is how to best cover up and seal these cracks? Water may already be in the interior cavity of the keel....so sealing it may seal water in. If you knew where the ballast was, one might be able to drill a small hole in the top and drip or pump in something like vegetable oil (protect iron from rust, but not matter if it leaked out into the water) in to displace the water.
And last, but not least, how to seal the crack? I have all the epoxy products, and a polyester gel-like gap/crack sealer, but would not something like 3M 5200 smeared over the crack work just as well, if not better?
Howard M17, #278
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Nope...I was talking about the joint in the CB trunk...under the boat...just inside the opening. Pictures to follow! Howard On 9/16/02 9:50 PM, "Jerry Montgomery" <jmbn@innercite.com> wrote:
No vegetable oil!!. I don't think it would keep the steel ballast from rusting, and it would definately keep any future repair from sticking. Same for silicone. Boatlife might do the job, but I would prep the glass by sanding, then use epoxy resin and fiberglass cloth. I'm assuming that the area in question is in the INTERIOR of the boat and that the liner you are talking about is indeed the hull liner, as opposed to the centerboard trunk liner, underneath the boat.
Jerry
To aid in the discussion, two pics are submitted. The rust blob is on the tip of the CB...the lowest point....took a grounding last year at the 2001 CBR, which scuffed off the elaborate paint job I had put on it. Everything else has held well. So I guess I get to do it again. The pics are looking up into the CB trunk from below, and show how the interior of the trunk liner is separating at the bottom of the CB trunk. CB still goes up and down easily. So....where does one go from here? Howard On 9/16/02 9:50 PM, "Jerry Montgomery" <jmbn@innercite.com> wrote:
No vegetable oil!!. I don't think it would keep the steel ballast from rusting, and it would definately keep any future repair from sticking. Same for silicone. Boatlife might do the job, but I would prep the glass by sanding, then use epoxy resin and fiberglass cloth. I'm assuming that the area in question is in the INTERIOR of the boat and that the liner you are talking about is indeed the hull liner, as opposed to the centerboard trunk liner, underneath the boat.
Jerry
Jerry: Here is the picture. Another one will follow. The rust blob is due to a grounding at last year's CBR. It happens. View is looking up into the CB trunk from below. Crack is between the liner and keel. Any suggestions on where to go from here? Howard On 9/16/02 9:50 PM, "Jerry Montgomery" <jmbn@innercite.com> wrote:
No vegetable oil!!. I don't think it would keep the steel ballast from rusting, and it would definately keep any future repair from sticking. Same for silicone. Boatlife might do the job, but I would prep the glass by sanding, then use epoxy resin and fiberglass cloth. I'm assuming that the area in question is in the INTERIOR of the boat and that the liner you are talking about is indeed the hull liner, as opposed to the centerboard trunk liner, underneath the boat.
Jerry ----- Original Message ----- From: "Howard Audsley" <haudsley@tranquility.net> To: <montgomery_boats@mailman.xmission.com> Sent: Monday, September 16, 2002 1:26 PM Subject: M_Boats: M17 Keel/Centerboard
Not sure what I had been drinking before a recent post, but a current inspection of the boat's keel confirms that the keel is in fact glass, and part of the original lay up of the boat. But I do notice that right above the interior opening for the CB trunk, the glass keel and trunk liner are separated in places, with small pockets up and down the seam, and hairline cracks....that looks like something that would allow water inside the keel cavity. Push on it in places and there is some visible movement.
But since I'm not having trouble with a swollen keel now, and don't want to, the question is how to best cover up and seal these cracks? Water may already be in the interior cavity of the keel....so sealing it may seal water in. If you knew where the ballast was, one might be able to drill a small hole in the top and drip or pump in something like vegetable oil (protect iron from rust, but not matter if it leaked out into the water) in to displace the water.
And last, but not least, how to seal the crack? I have all the epoxy products, and a polyester gel-like gap/crack sealer, but would not something like 3M 5200 smeared over the crack work just as well, if not better?
Howard M17, #278
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Yes, a mess! I would take out the board, grind the keel down to solid glass, make sure that everything is dry, and re-glass, using EPOXY resin. Jerry ----- Original Message ----- From: "Howard Audsley" <haudsley@tranquility.net> To: <montgomery_boats@mailman.xmission.com> Sent: Wednesday, September 18, 2002 5:39 PM Subject: Re: M_Boats: M17 Keel/Centerboard
Jerry: Here is the picture. Another one will follow. The rust blob is due to a grounding at last year's CBR. It happens.
View is looking up into the CB trunk from below. Crack is between the liner and keel.
Any suggestions on where to go from here?
Howard
On 9/16/02 9:50 PM, "Jerry Montgomery" <jmbn@innercite.com> wrote:
No vegetable oil!!. I don't think it would keep the steel ballast from rusting, and it would definately keep any future repair from sticking. Same for silicone. Boatlife might do the job, but I would prep the glass by sanding, then use epoxy resin and fiberglass cloth. I'm assuming that the area in question is in the INTERIOR of the boat and that the liner you are talking about is indeed the hull liner, as opposed to the centerboard trunk liner, underneath the boat.
Jerry ----- Original Message ----- From: "Howard Audsley" <haudsley@tranquility.net> To: <montgomery_boats@mailman.xmission.com> Sent: Monday, September 16, 2002 1:26 PM Subject: M_Boats: M17 Keel/Centerboard
Not sure what I had been drinking before a recent post, but a current inspection of the boat's keel confirms that the keel is in fact glass, and part of the original lay up of the boat. But I do notice that right above the interior opening for the CB trunk, the glass keel and trunk liner are separated in places, with small pockets up and down the seam, and hairline cracks....that looks like something that would allow water inside the keel cavity. Push on it in places and there is some visible movement.
But since I'm not having trouble with a swollen keel now, and don't want to, the question is how to best cover up and seal these cracks? Water may already be in the interior cavity of the keel....so sealing it may seal water in. If you knew where the ballast was, one might be able to drill a small hole in the top and drip or pump in something like vegetable oil (protect iron from rust, but not matter if it leaked out into the water) in to displace the water.
And last, but not least, how to seal the crack? I have all the epoxy products, and a polyester gel-like gap/crack sealer, but would not something like 3M 5200 smeared over the crack work just as well, if not better?
Howard M17, #278
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Well, the cast iron board will be out this winter to rehab it again anyway. The original paint job was a lot of work and expense, but it held up well...except for the tip...which was the part that grounded on pea gravel and oyster shells... Which skinned the paint off. The rest is history. I can have it hot dip galvanized for about $150 and may do that this time. Then paint over that. But I don't know if it will take abrasion either. A bronze board would be nice...as a minor grounding would not affect it at all. If one went digging around in the keel (not that I'm going to), what would you expect to find behind the liner of the trunk...the part that you can see in the picture. Presumably...it is the glass trunk liner (although something up inside the trunk looks to be thin plywood), then some type of iron...then the exterior wall of the keel? Just trying to anticipate what is supposed to be there, so when I get there and it is different, I'll know I have a bigger problem. Thanks for helping out on this. Not many makers of anything would even talk to you about something they haven't seen in almost 25 years. Howard M17, #278 On 9/19/02 11:09 AM, "Jerry Montgomery" <jmbn@innercite.com> wrote:
Yes, a mess! I would take out the board, grind the keel down to solid glass, make sure that everything is dry, and re-glass, using EPOXY resin.
Jerry -
participants (2)
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Howard Audsley -
Jerry Montgomery