ANOTHER trip cancelled! Cracked frame this time... - Fiberglass RV


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Old 03-18-2013, 07:48 PM   #1
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ANOTHER trip cancelled! Cracked frame this time...

If anyone was following this thread, I was pretty excited to get back on the road again after I replaced my coupler that rusted through and was ready to fall off.

Well, I took the trailer out for a five mile spin tonight to make sure everything worked and I was glad to see that my coupler was holding tight. I went to take a picture for Francesca and noticed that things were not right. Check this out.




This is what I found when I looked at the other side of the photo above. Sooooo, how does this get fixed?
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Old 03-18-2013, 08:12 PM   #2
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Geez man....What year is your Scamp?
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Old 03-18-2013, 08:17 PM   #3
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That's crazy! Isn't it a '91 or something? Note to self....make sure I check the frame when inspecting the egg....
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Old 03-18-2013, 10:55 PM   #4
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Bryan, is that a piece of angle iron wrapped around the outside and bottom of the tongue at that point? That would presumably be either (another) strange Scamp structural feature, or a previous owner's attempt to splint over that crack. Does the other side of the tongue have a similar feature (the angle iron, hopefully not the crack)? Is this at a bend, or is the rail straight through this "feature"?
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Old 03-18-2013, 11:17 PM   #5
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It's a 1991.

Both sides have this extra added "feature" on them. I thought I had read at one time that Scamp put those on because the body would sometimes rest on the frame there causing stress while towing. I think I have seen pictures of other Scamps with this extra reinforcement also. The other side does not have a crack but it's starting to develop a pretty good bulge in the side wall of the tubing from the same problem.

I did manage to dig up a thread where someone repairs this themselves and it doesn't look fun at all. This occurs during a straight portion of the frame rail. That might be my only saving grace here. I don't know how confident I am in my own welding to replace both sides with structural integrity in mind.
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Old 03-19-2013, 03:33 AM   #6
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Hook it up to your vehicle, jack it up under that point to bring it back together, grind out the crack in a "V", weld it up, grind it flush, then put a diamond fishplate across it with some rosette welds. No biggie.
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Old 03-19-2013, 05:56 AM   #7
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Angle is Scamp original equipment
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Old 03-19-2013, 07:14 AM   #8
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I've seen this failure before. I saved the pictures but can't seem to find the thread. Maybe someone else will have better luck. Raz
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Old 03-19-2013, 07:41 AM   #9
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I had saved this thread (Frame snapped) because of the pictures but the picture link is dead. This may be the post others are looking for. Like mentioned most frame problems are related to axle issues.
Eddie
16' Scamp Frame Snapped
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Old 03-19-2013, 08:02 AM   #10
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Looking at the picture, this is a classic stress concentration caused by an abrupt change in cross section. I'd sister on another piece but try to feather out the transition.
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Old 03-19-2013, 08:39 AM   #11
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Quote:
Originally Posted by Thomas G. View Post
Looking at the picture, this is a classic stress concentration caused by an abrupt change in cross section.
Translation to more common language:
The scrap of angle that Scamp stuck on the without much thought or care caused the failure.

Bryan - we've seen your work on the coupler: repair it properly (as already described) and I expect you'll be fine.
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Old 03-19-2013, 11:14 AM   #12
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Quote:
Originally Posted by Brian B-P View Post
Translation to more common language:
The scrap of angle that Scamp stuck on the without much thought or care caused the failure...........
Thanks Brian. Now what's this about my sister and a feather?
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Old 03-23-2013, 09:21 PM   #13
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Ok, back from our trip sans camper.

In looking at the plies would it be recommended to fix it as Jared J says to or would I be better off welding in a new frame tube section? I was thinking one about a foot long or so? The other side is starting to bend so I guess I could jack that side up to bend it back and sister on a few pieces to the sides for extra support.

Thomas and Brian, thank you for the pictures and layman's explanation. That really cleared things up for me. I'm guessing that I need to grind off the angle iron to make the repair and then weld a longer piece of angle iron on using filet welds all the way around.
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Old 03-23-2013, 09:35 PM   #14
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Wow, is this something that happens regularly with Scamps of certain model years, or is this a 'standard feature' of them all?
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