I am looking at a used Sundowner. The owner doesn't want all aluminum anymore because of stress fractures from the rough roads to the trails they ride. So my first question is - is this a common problem? and - can these fractures be easily fixed or seen before they become a problem? I don't have the details about any stress fractures on this trailer yet.
Posted 2007-11-08 8:40 AM (#70673 - in reply to #70659) Subject: RE: Stress Fractures
Expert
Posts: 2615
I think that since he has made that statement to you,and is trying to sell an all aluminum trailer,I would ask him,'Where are there stress fractures on this trailer that you're selling??"
I know that sounds pretty simplistic and you may say,"well,DUUUH,lady!" but that should have been the first thing that the seller would have known he was making pretty obvious to a potential buyer.
Posted 2007-11-08 8:41 AM (#70675 - in reply to #70659) Subject: RE: Stress Fractures
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Posts: 5870
Location: western PA
Stress fractures can be a problem in aluminum structures. The repair is not just to stop drill the crack and weld the crack closed. After the weld is completed, the surrounding area becomes brittle and has to be annealed by the application of heat. Otherwise you may end up with another crack beside the repair. If it's a chronic area for breakage, a doubler should be installed.
There are several different series of aluminum that are used in fabrication. Some are very stiff and rigid, others are able to flex without breaking. The manuf has to determine the best combination of properties that best suits his needs.
In any case the repair should only be attempted by a qualified welder. If there are many cracks I would avoid that particular trailer. It has obviously been subjected to stresses it was not designed to handle, and could be a continual source of problems long into the future.
Posted 2007-11-08 9:20 AM (#70681 - in reply to #70659) Subject: RE: Stress Fractures
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Posts: 5870
Location: western PA
I have two aluminum trailers of different brands. I've never noticed any structural failures on either one. One is almost ten years old, the other is seven. I bought both of them used, and checked them out really well before I bought them and nothing structurally has changed since. The one I've only had since this summer.
I do almost no off the road traveling, mostly four lane and secondary road usage, so I wouldn't have the issues the other posting may have encountered. We have only recently gotten some trail horses and plan on mixing that riding with our showing. So our trailers are generally not used as hard as some other owners might use theirs.
I would consider purchasing a trailer needing one or two structural repairs, depending on the damage location and severity. However if it were involved with many issues and obviously used to breakage, I would avoid it.
Posted 2007-11-08 9:32 AM (#70683 - in reply to #70659) Subject: RE: Stress Fractures
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Posts: 5870
Location: western PA
As an aside, and I don't want to restart the Exiss best or worse trailer thing again, my seven year old Exiss Event is in a new condition, with no problems of any kind. I looked at many brands of trailers before our purchase, and chose this one because of its construction and condition.
The only modifications I've made since our purchase was to install small accessories in the LQ, acid etch the stall flooring and install the liner.
There are many good trailers out there, just look out for the bad ones.
Posted 2007-11-08 10:39 AM (#70695 - in reply to #70659) Subject: RE: Stress Fractures
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Posts: 122
Location: Monroe, WA
Well I just found out that she was referring to another trailer and that this trailer is steel with aluminum. See what I know, well not much because I can't even get the emoticons to work! LOL! Thanks everyone!