Hello. I have a 2006 Model Viscount 17'6" Grand Tourer pop-top and I have just now noticed that the roof seems to have sagged about 50mm, ie; it has dipped down in the centre and is quite noticeable when standing up high looking accross the top from the outside. Is this a common problem, and if so, is it repairable?? KB
Hi, No, there is nothing on the roof other than 1 small solar panel positioned neatly in one corner. Nothing else, and I have never climbed on it either. I just thought it may have been a design fault???
I had a pop top once that had a slight bow in the roof area of the van itself in the middle, at the front.
I was concerned that water may get in at the front while travelling so made some enquiries and was told the only way it could be got out was the jack up the furniture etc inside to van to push the bow upwards.
After some consideration I decided to fill the bowed area with some stuck on rubber sealing strip which did the job and it remained like that until I sold the van, never had a problem with it. I know your problem is slightly different but I am sure I have seen some vans with "wavy" tops (ie; slightly dents) around at some stage. I think it is more likely a manufacturing fault.
Keiron, We had a similar problem with our poptop. The way it was set up was scissor-lift at each end, and 4 gas struts,...2 on each side.
The gas struts were mounted with the bottoms towards the centre, and the tops towards the front & rear.
I left the bottoms where they were, but moved the top brackets in towards the centre, so effectively reversed the angle.
In this configuration the struts push the middle of the roof up, instead of the ends of the roof.
This has fixed the problem we had with water pooling in the middle of the roof.
Cheers.
PhillT
Many thanks Phill, but the sides of my roof seem to reasonably straight, with just the sagging being towards the middle. the ends and sides seem to be geometrically OK. I am at a loss apart fro a design problem.
When the top is down, do the sides of the top line up with the sides of the van, or does the top sit wider towards the centre of the sides?
Ours sat wider, and as a result of this twisting of the roof frame, the middle of the roof was lower than the ends of the roof.
Maybe it is a different problem to yours.
If your sagging is across the width of the roof, then depending on your model, it may be possible to remove the ceiling from the inside, and re-bend & strengthen the cross bracing?
