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Boat Leak
On Sep 16, 8:12 am, "John Cassara" wrote:
Below is a diagram from Glen-L. WWW.GLENL.COM They produce and sell boat kits and supplies such as inboard hardware. This generic diagram shows arrows representing some sort of mechanical fastener being use to hold the the shaft log. I would not feel comfortable with the thought of all that vibration and torque going through that device and there not be a screw or bolt! Better take a good look at it from all sides!http://glen-l.com/inboard-hdw/direct-drive.html "Mike" wrote in message ups.com... I have an old Mastercraft inboard ski boat that I need some help with fixing. Where the shaft of the prop goes through the hull there is a metal plate. The edges around the plate were leaking and it was sealed with silicon. I cut out the gobs of silicon that were there and found that the plate sits in a 1/2 inch trough in the fiberglass hull. When the silicon was removed I can move the plate fairly easily by hand, even lifting it up slightly. I replaced the existing silicon with Goo marine sealant. I let the sealant set for 24 hours then lowered the boat back in the water. My little leak turned into a gusher. How is this plate supposed to be secured to the boat? Do I just need to do a better job with silicone? Is there some adjustment that needs to be made to hold the plate on better? Should this have done over with fiber glass? I put photos of the plate and problem area he www.lyonsland.com/BoatLeak Thanks for any help. --Mike I like the 5200 suggestions. It is has very tenacious adhesive qualities but I would also consider doing an epoxy/glass repair job here. It will seal it and create a decent mechanical bond as well. |
#12
posted to rec.boats.building
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Boat Leak
On Sun, 16 Sep 2007 13:46:43 -0700, roger
wrote: On Sep 16, 8:12 am, "John Cassara" wrote: Below is a diagram from Glen-L. WWW.GLENL.COM They produce and sell boat kits and supplies such as inboard hardware. This generic diagram shows arrows representing some sort of mechanical fastener being use to hold the the shaft log. I would not feel comfortable with the thought of all that vibration and torque going through that device and there not be a screw or bolt! Better take a good look at it from all sides!http://glen-l.com/inboard-hdw/direct-drive.html "Mike" wrote in message ups.com... I have an old Mastercraft inboard ski boat that I need some help with fixing. Where the shaft of the prop goes through the hull there is a metal plate. The edges around the plate were leaking and it was sealed with silicon. I cut out the gobs of silicon that were there and found that the plate sits in a 1/2 inch trough in the fiberglass hull. When the silicon was removed I can move the plate fairly easily by hand, even lifting it up slightly. I replaced the existing silicon with Goo marine sealant. I let the sealant set for 24 hours then lowered the boat back in the water. My little leak turned into a gusher. How is this plate supposed to be secured to the boat? Do I just need to do a better job with silicone? Is there some adjustment that needs to be made to hold the plate on better? Should this have done over with fiber glass? I put photos of the plate and problem area he www.lyonsland.com/BoatLeak Thanks for any help. --Mike I like the 5200 suggestions. It is has very tenacious adhesive qualities but I would also consider doing an epoxy/glass repair job here. It will seal it and create a decent mechanical bond as well. 5200 all the way I think that epoxy won't give a permanent bond between metal and fiberglass because they expand and contract at different rates with temperature changes. Over time this breaks an inflexible bond. |
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