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Boat House
17.5' 1998 Tracker lost part of bottom support/rail strips
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<blockquote data-quote="old_school" data-source="post: 205178" data-attributes="member: 4665"><p>After much consultation with other tin boat owners it looks like the rail failed because the hull was flexing (maybe previous owner hit large waves or wakes on a regular basis). When the hull flexes small stress cracks develop around the rivet holes. After a while it is just like bending a pop can back and forth - finally cracks in half (just like the rail).</p><p></p><p>Rather than weaken the rail, and put more holes in the hull, we are leaving it spot welded. As you can see it was not a pretty job but welding it upside down caused the weld to drip down and not into the holes - so it was a lot of spot/blob welding and grinding. I have since smoothed on some Marine Tex (epoxy) on any forward facing weld to help sheer the water off.</p><p></p><p>We are going to inspect all rivets on a more regular basis and when one starts cracking just spot weld that particular rivet/hole.</p><p></p><p>Thank you everyone and I hope this helps someone else having problems.</p></blockquote><p></p>
[QUOTE="old_school, post: 205178, member: 4665"] After much consultation with other tin boat owners it looks like the rail failed because the hull was flexing (maybe previous owner hit large waves or wakes on a regular basis). When the hull flexes small stress cracks develop around the rivet holes. After a while it is just like bending a pop can back and forth - finally cracks in half (just like the rail). Rather than weaken the rail, and put more holes in the hull, we are leaving it spot welded. As you can see it was not a pretty job but welding it upside down caused the weld to drip down and not into the holes - so it was a lot of spot/blob welding and grinding. I have since smoothed on some Marine Tex (epoxy) on any forward facing weld to help sheer the water off. We are going to inspect all rivets on a more regular basis and when one starts cracking just spot weld that particular rivet/hole. Thank you everyone and I hope this helps someone else having problems. [/QUOTE]
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Boat House
17.5' 1998 Tracker lost part of bottom support/rail strips
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