What does anyone think on this issue
Hi everyone this is my first post and I was wondering if anyone has heard of this happening to anyone else while driving down an A road having just come off the motorway our nearside wheel on the caravan failed by which I mean it broke part way up the 5 spokes leaving the tyre still fully inflated and the centre of the wheel still attached to the brake drum.This was on our Adria adora isonzo 2019 and I am concerned that this potentially could happen to someone else, the reason I say this is because our caravan has done a lot of miles having worn out the tread on a set of tyres ( not a common thing). I have been told by Adria and the wheel supplier it's because I over loaded it as they always do about any faults with a caravan but having done some research myself the max load of the wheel is 950 kg plus the tolerance of 20% makes it 1140 kg per wheel and so 2280 kg for the axle and caravan my caravan has a max weight of 1750 kg meaning I would have to over loaded by 530 kg which anyone with an ounce of common sense would know is impossible, please let me know what you think about this thanks.
Best Answers
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It must be metal fatigue and something must have stressed the wheel to cause it to fail. I cannot imagine it failing under normal smooth road driving conditions. There is a guide somewhere on here on how to post photographs, it is simple enough.
Place your cursor where you want the photo to appear and click on the mountain icon in the left-hand corner of your post and look for the photo you want in the box that comes up.
peedee
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Mick, you are not shown as a club member on this forum but as a participant who joined on 23 Jan. I think you need to contact Rowena to resolve the issue.
PD has supplied instructions for posting photos. it should be a simple process. Again, speak to Rowena if it’s not working for you. Contact details are in the Community Guidelines.0 -
@Mick re photos
Look at the red lined box in which you post to reply. There is a little mountain icon in a box at the bottom. Click on this, and it should bring your phone photos up. Select the photo you want to post, it might say “use” at the top of the photo, (it does with an iPhone) click on this, and your photo should appear inside the reply box. Then press post comment. Don’t worry about the size at this stage, just try to post a photo.
This is a photo from my screen telling which icon to use to post a photo….
I have ringed the icon above you need to use. If it doesn’t work then come back to us with your phone make. Good luck.
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Answers
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Well, if it was me I would submit my calculations to Adria and see what they say. I'm not an expert so can't say if your calculations are correct or not but I would try and get a second opinion before submitting them.
Can't say I've ever heard of your experience before.
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A quick internet search has come up with these figures:-
- Unladen Weight:1593 kg.
- MTPLM Weight:1750 kg.
I have "a thing" about payloads and I would say with just 157kg it is highly likely you will probably have overloaded your van, but by how much I do not know. If you have a mover fitted that would eat into your payload by about 30kg, so you have a lot less than you think. What other factory or dealer extras do you have?
I carry a chart of weights for our vans contents and it is between 220kg and 250kg, excluding an awning or the bikes that I carry on the drawbar. We are a mature couple and do not fill every cupboard
If you get some scales and work the weights out I believe you will have a nasty surprise.
Colin
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Is this an alloy wheel you are reerring to?
David
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Even if you significantly overloaded the van, I doubt that would be the sole cause. I think @TimboC hit the nail on the head and it is most likely a combination of overloading and pothole damage or even overloading and traversing sleeping policemen. Many caravan owners, sitting comfortably in their well sprung tow cars, have no idea of the punishment they inflict on their less well sprung caravans.
peedee
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Hi its difficult to get over to people with out pictures which I have I am retired now but I am a fully qualified mechanic and a hgv driver and owner and have been caravaning over 30 years I always carry my awning on the back seat of the car ( kia Sorento) and don't speed over speed humps, my point is the weight the wheel can take before it fails there is no potholes damage to my wheels the rims have no kerb damage I look after my caravan plus there also cracks on the other one in the same place. I wish I could find someone to test the metal they have been checked visually by the company that supplied Adria they said it was fatigue failure due to overloading which they have no proof everyone I have contacted just says overloading the get out they always use, I hope this answers some of your questions I just wish I could post pictures.
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The photo posting issue might be because Mick is both new to the forum and is not shown as a club member. There will be precautions in place after earlier unfortunate occurrences with joiners and photos.
It’s also posted as a story rather than as a thread on the discussion forum but I don’t think that in itself is a bar to posting pictures.1 -
Good point Colin.
We are just in the process of getting a new caravan, and we have emptied everything into the attic, so I've weighed it all.
Including motor mover, extra gas bottle and battery (I'm never sure if this is included in MIRO..some specs are very vague, but I've assumed not) it comes bang on the limit, and through luck rather than judgement.
Thats not including tins, bottles, cadac, clothes and awning, all of which go in the car and would double the limit.
When we started caravanning we just shoved everything into it...I reckon we got a get out jail card there!
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Hopefully this will give an idea of actual weights.
Colin
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A fracture in one or more spokes could be induced by the wheel being out of ballance. After one or more spoke(s) fails the others will follow quickly. Now, what difference is there between the fractures in different spokes? What marks are there on the wheel where the nuts/bolts bear on it? What damage may have been done when the tyres were replaced?
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See my post up above @Mick
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