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Old 01-26-2011, 10:18 PM   #1
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Rear storage crack and separation of trim 2008 Classic 30'

I have been looking at this crack grow in size, and now it looks like the trim is also separating. I have looked at the plywood inside the storage compartment and I don't see any dry-rot , but I could be wrong.

Any idea what I should do? What type of sealant should I use?

Thanks for any advice!




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Old 01-27-2011, 05:30 AM   #2
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Your crack appears to be a cracked wield. Wields do not hold up well in a vibration environment. If it were mine, I would take the unit to a qualified wielding shop and have the aluminum re-wielded. Make sure they are qualified to wield aluminum; look at some of their work.
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Old 01-27-2011, 06:56 AM   #3
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looks like a normal crack to me, i would just seal it.
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Old 01-27-2011, 08:06 AM   #4
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When the door is open try not to put any pressure on it. Acts like a lever and puts stress on the hinges and the frame. zz
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Old 01-27-2011, 04:17 PM   #5
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On a not-so-related note, it appears it's time to reseal that belt moulding. This is necessary to help keep water from entering the underbelly and potentially the rear floor area.
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Old 01-27-2011, 04:49 PM   #6
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In addition, I would try and root cause analyze what caused the cracking. I can only visualize 2 causes. Others may have ideas too. I would think these cracks were caused by either tail dragging on one side of the frame rails at the consummable members at the rear of the AS. This could cause a twist in the rear and popped the welds. The other potential cause, (more probable IMO) I would offer, is harmonic vibration originating from unbalanced tire/wheel/hub assembly. These harmonics are amplified through all that mass hanging to the rear of the axles. Not to add to all the "harping" on unbalanced running gear, but I am a big believer in the effects of harmonic vibrations in trailers and TVs from personal and professional experience.

I have ensured proper wheel balancing and added Centramatics to my AS as well as a van I owned many years ago. They do work to constantly balancing revolving mass of the entire hub and wheel assemblies.

There are many posts on this subject and you can search using the google search feature and many keywords such as centramatic, etc.

Unless I knew a really good aluminum welder and a reweld was relatively cheap, I'd work silver Parbond into the crack and call it good. Incidently, I personally like silver Parbond for the belt mouldings reseal too.
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Old 01-27-2011, 06:21 PM   #7
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Ok Silverbeast.. we are in the same town (work in Santa Rosa) with the same trailer..

Where ya been?

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Old 01-27-2011, 07:04 PM   #8
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The separation is sometimes a result of vibrartion from too much weight in the rear or a weight distribution hitch that's not set up correct. Vinnie is a good guy and I'm sure will have better suggestions on welding and prevention of a reoccurrance. Also he may suggest that you join us for the NorCal Casini Ranch Rally in April.

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Old 01-27-2011, 07:18 PM   #9
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The separation is sometimes a result of vibrartion from too much weight in the rear or a weight distribution hitch that's not set up correct. Vinnie is a good guy and I'm sure will have better suggestions on welding and prevention of a reoccurrance. Also he may suggest that you join us for the NorCal Casini Ranch Rally in April.

Neil
I think rear weight could be a factor, but it would have to be extrordinarily high, IMHO. A Late model classic is pretty beefy in comparison to earlier models.

Guys, I'm in a camp that the hitch bar spring weight rating has no play on rear end at all....UNLESS your have extrordinarily high flex applied AND the trailer suspension is severely compressed, OR worn out axle rubbers. OP has an 08 model. Don't think that's the case. I believe stiff hitch setup will contribute to only AS axle forward issues with an otherwise healthy AS...given proper weights and loading.
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Old 01-27-2011, 07:36 PM   #10
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Neil, to be fair....we should consider your theory on rear weight. I did once deal with an owner of a P-chassis motorhome who had front tire wear and severe handling issues. Arguements and finger pointing ensued. Upon inspection, the fulltimer, as a hobby, collected rocks from their travels and placed them under their rear bed. Yup, 800 pounds of rocks some 8 feet behind the rear axle!

I am assuming Silverbeast is not "one of those", or we'd be hearing about him wrapped around a guardrail somewhere. Silver.....more info required.
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Old 01-27-2011, 09:14 PM   #11
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Neil, to be fair....we should consider your theory on rear weight. I did once deal with an owner of a P-chassis motorhome who had front tire wear and severe handling issues. Arguements and finger pointing ensued. Upon inspection, the fulltimer, as a hobby, collected rocks from their travels and placed them under their rear bed. Yup, 800 pounds of rocks some 8 feet behind the rear axle!

I am assuming Silverbeast is not "one of those", or we'd be hearing about him wrapped around a guardrail somewhere. Silver.....more info required.
I guess your moho guy never watched "The Long Long Trailer!"
Neil
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Old 01-27-2011, 09:21 PM   #12
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I guess your moho guy never watched "The Long Long Trailer!"
Neil
Ya know what.....I've heard about it here many times, but I haven't seen it either. In what format and where can I get it?
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Old 01-27-2011, 09:42 PM   #13
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How does the underside edges of the bumper - drag pads look? Any replacement bannana - belly wraps?

I found a small bucket full of round river rock under the back belly wraps, looked like they had high sided it towing through a BLM area dry wash somewhen and dragged back a bunch of desert. If one side of the frame took a hard drag that might've been enough to pop an already stressed weld there...
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Old 01-27-2011, 09:53 PM   #14
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Ya know what.....I've heard about it here many times, but I haven't seen it either. In what format and where can I get it?
How about on DVD for $6? It's a great laugh...

DVD: The Long, Long Trailer (DVD) with Lucille Ball (actor), Marjorie Main (actor) and Vincente Minnelli (director)
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