Delamination

Mar 27, 2011
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Hi I had a small area of delamination in my caravan which I have repaired, it has pretty much cured the problem but there is still a slight bounce to the floor, nothing serious and I'd say at least a 90% improvement on before the repair, I have had an idea which I would like peoples opinions on as to if there is any reason not to do, where the slight bounce is in the floor is directly above a cross member of the chassis, is there a reason for me not to insert some sort of block between the chassis and the floor? I put a jack under the caravan in more or less the same place that the block would be and it got rid of the movement totally, the cross member is what you would think was an axle except the van doesn't actually have an axle as such as the wheels are really attached to an arm off the chassis, any safety thoughts or other technical reason why I shouldn't go ahead.
 

Parksy

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Nov 12, 2009
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Hi Beehpee
Without actually seeing the area it's difficult to judge but if the bounce is still being caused by delamination why not re-treat the affected area?
I have a feeling that if your previous delamination treatment was successful the bounce and the gap between the cross member and the caravan floor may be due to warping of the floor.
Is there any way to fasten the caravan floor to the cross member that is apparently meant to be supporting it? If the cross member is made out of timber some large flat headed alloy or stainless steel rust proof screws should do the trick if you lift the carpet to fasten the floor down.
The danger with inserting blocks of wood may be that the warping could become worse and distort or move other components inside the caravan and there may be lpg pipes which could be affected in addition to the sealed seams of the caravan body especially where the floor and walls are joined.
Another reason that I'd advise against inserting bits of wood is that any weight or stresses when the caravan is being towed could be concentrated on the insert and also it might fall out again if you go over a pothole of which there are many. This might make matters worse in the long run.
Try to identify what's causing the bounce by looking underneath when someone walks inside to see if it's warping or delamination and if it's not that serious there's nothing wrong with having a spring in your step
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