Mine are retained by bolts through the hull.Something about self-tapping screws in fiberglass doesn't sound like a winning design IMO.
It doesn't look like they're designed to shear off.
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Mine are retained by bolts through the hull.Something about self-tapping screws in fiberglass doesn't sound like a winning design IMO.
OK sports fans... My sources have been called into question about the mounting design of my underwater exhaust. Now my question was to Mark Muntz at Corp. SeaRay specifically asked about my boat... 4 screws and alot of silicone.
Mark,
"Yes that is a correct assessment of why they are installed that way they are designed to be break away in the event of striking an object or grounding the boat."
Mark R. Muntz
Florida Customer Service,
Sea Ray Boats, Inc.
1-321-449-8628, Option one
Hi Mark,
I have a question I hope you can help answer.... I have a 1998 450 Sun Dancer with the underwater exhaust.
The unit is held to bottom side of the boat by 4 screws and a lot of silicone. I have been told that this is designed that way in case of hitting an underwater obstruction it would simply shear off instead of ripping a hole in the bottom of the boat. What is Sea Ray's official take on this.....
Thank you, Mark D. Flaten
As Club Sea Ray spirals down because of jack asses that don't like it when one stands up to statements that make no sense, I wonder how long it'll be before the more knowledgeable people move on to other sites...
They do... if you have coring in the hull, the hydrostatic pressure will penetrate 1/4" of gel coat and glass and soak the core and cause pencil lead size holes that exist all over inside the bilge to pee like a race horses and kick in the secondary bilge pumps... learned it here today.
Why all the sarcasm....is this really necessary?
Okay, I finally found the problem. First I have to say, I was delayed a week trying to pull the boat out of the water because of rough weather here in North Carolina. The screw repair is still holding but I couldn't wait any longer. I got out my scuba tank and went under the boat. The starboard side exhaust elbow (V drives) was completely sheared off the hull. There is only a small scrape on the hull forward of the trim tab, but the entire exhaust collector is gone!
The silicone sealing material is still there, but the collector is gone. I had six people on the boat when I must have hit something, but no one felt or heard anything. The Nuese and Trent rivers here have been kicking up over a couple of storms and there must have been a submerged log.
Thanks to all, comments?
You know that for a fact or is that an assumption? Something about self-tapping screws in fiberglass doesn't sound like a winning design IMO.
Liberty Landing mechanics in NYC told my father-in-law this was by design, the underwater exhaust is designed to break off.
Just from looking at this set up I can tell you they are designed, at least the ones on his boat and ours, to break off. There is no way these 4 little screws could hold up to a major impact.