Bangs and rattles

Swaltham

Swaltham

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Van conversion
Hi everybody. New member here. Looking forward to some good times
We are on our 4th motorhome (if you count a vw california we had for a few years). After a year with our latest model , a 7.5 metre adria, we've decided to stick with it for a while longer ( unfortunately it hasn't been without problems during that time) and I'm now looking to do some add ons. I don't know whether it's our imagination but this van seems to suffer more from bangs and rattles than any of the others. Even more so than the swift kon tiki we had in late eighties. Hence I'm considering air suspension. What are peoples thoughts on this and especially fitting rear or full? Driving back home on the m20 last week after the tunnel was horrendous. Like driving down a railway track!
Thanks for any replies
Steve
 
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Swaltham said:
That's not too far away tnanks bigtree. One of the v loggers had their van done somewhere in that area. I shall re visit the YouTube vid.
Steve
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If you could send a link when you find it ?
 
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Guigsy said:
Load is load, it doesn't matter if it's sand or a bed and bathroom.
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This is not strictly true. There is static load and dynamic load. Motorhomes have a much higher CoG (Centre of Gravity) than loaded commercial vans. This means that dynamic load on one side or the other while cornering can be very significantly higher with a fully loaded motor home than, say, a builders van with 50 bags of sand and cement laid on its load bed. This, together with high likelihoods of rear axle overload due to overhang is one of the reasons why the stronger CP tyre was developed
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I just last week fitted a pair of new Michelin Cross Climate CP to my rear axle with the limit 2000kg on it. They are run at the recommended 80psi. In terms of comfort the Cross Climate are better than the old Agilis, but the major improvement in ride came from fitting rear semi-air, which at 6bar takes an estimated 4-500kg of moment off either side of the Alko torsion bar thus permitting an additional 1.5” of vertical wheel travel. Dismounting the horrendous french speed bump plateaus now holds slightly less trepidation.

Even with the super stiff CP construction, a known (weighed) 2000kg axle load and 80psi my rears still look like they need more pressure half the time.
 
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If anyone is interested I will be selling the Alloy wheels and tyres from my Carthago when the new ones arrive, 225/75r16 Michelin Agilis CP with less than 1200 miles on them, they are M&S rated.
Only reason for selling is I’m uprating the payload.
456B19DF-4921-4741-A373-D7D8DC5089C5.jpeg

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Swaltham said:
Hi everybody. New member here. Looking forward to some good times
We are on our 4th motorhome (if you count a vw california we had for a few years). After a year with our latest model , a 7.5 metre adria, we've decided to stick with it for a while longer ( unfortunately it hasn't been without problems during that time) and I'm now looking to do some add ons. I don't know whether it's our imagination but this van seems to suffer more from bangs and rattles than any of the others. Even more so than the swift kon tiki we had in late eighties. Hence I'm considering air suspension. What are peoples thoughts on this and especially fitting rear or full? Driving back home on the m20 last week after the tunnel was horrendous. Like driving down a railway track!
Thanks for any replies
Steve
Click to expand...
Buy more teatowels far less expensive
 
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I'm still waiting for a reply from ETRTO to my email in April .... asking them to supply me with links to the evidence to back up their claim that all Campervan/Moho's should be fitted with CP tyres pumped up to 80 psi, to prevent multiple accidents from overloading and perished tyres - which is essentially what their guidance says

They've promised me a reply in June .... 🤷‍♂️
 
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Anecdotal evidence suggests CP tyres have less grip in the wet and still degrade and crack as quickly as van tyres. Are they claiming that CP tyres take a higher load than the rating on the sidewall, because that seems unlikely.
 
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No they're not claiming that. I've read the guidance and it basically says (I'm paraphrasing loads but..) something like ..."most campervan and Moho owners leave their vehicles unmoved for months on end, then fill them full of gear, often overloading them, which causes accidents - therefore they should be made to fit CP tyres at 80 psi".

I think thats garbage - but I might be wrong so I asked them to point me at the evidence/studies they used to come to this conclusion...
 
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Hi bigtree. I'm afraid I'm not tech savy enough to attach a YouTube link in this forum. The v logger goes under the heading of motorhome adventures and he originally posted it 4 months ago. Im pretty sure it is the same place. It's quite a comprehensive video albeit he only had semi air fitted. He did film the whole procedure though ( eventually!)
 
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Lenny HB said:
Try telling that to all the posh Motorhome manufacturers. N & B, Morelo, Concorde etc., they all use standard van tyres. I not noticed them lining the the sides of the road with blown tyres. :giggle:

When my new van arrives I'm hoping to do a deal and get the tyres swapped no way do I want camping tyres on it. I like tyres with some grip and a decent ride.
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Our Elddis Autoquest 155 bought used recently is fully shod with camper tyres. When we a hd a double blowout in germany in 2018 the German police told us that if it had been sold to us in Germany they would have proscecuted the dealer for incorrect tyres being fitted, the ones on were 225/75X15 car tyresalbeit heavier dutyThe vehicle neveR suffered with puncture blow out again one all were replaced with camper tyres
 
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Ian Bosman said:
Our Elddis Autoquest 155 bought used recently is fully shod with camper tyres. When we a hd a double blowout in germany in 2018 the German police told us that if it had been sold to us in Germany they would have proscecuted the dealer for incorrect tyres being fitted, the ones on were 225/75X15 car tyresalbeit heavier dutyThe vehicle neveR suffered with puncture blow out again one all were replaced with camper tyres
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Van tyres are perfectly legal. Some large German vans from big names sell with them from the factory. We're not suggesting car or even SUV tyres.

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Blimey! I don't even have a problem, but I sure do learn a lot from you guys.
Excellent read, thank you.
 
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Guigsy said:
Van tyres are perfectly legal. Some large German vans from big names sell with them from the factory. We're not suggesting car or even SUV tyres.
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There are people that openly admit they chose to fit 4x4 tyres to motorhomes, misguided decision though
 
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Guigsy said:
I thought the mud grabber type tyres people were using were van tyres?
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have seen people fit General Grabber 4x4 tyres and say they work well on mud and grass. Not built for the constant weight though
 
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My cv40 had 80psi on cp tyres all round, it was scary to drive felt like it was on ice skates.
I've reduced to 60psi all round and the ride comfort and handling is night and day, I really enjoy it now.

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Srp111 said:
My cv40 had 80psi on cp tyres all round, it was scary to drive felt like it was on ice skates.
I've reduced to 60psi all round and the ride comfort and handling is night and day, I really enjoy it now.
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I'm not sure how I feel about this. I don't think this is what the manufacturers recommend? The tyres are flexing a lot more than they did before. They are camper side walls, so are supposed to be stiff. Could this be generating to much heat and movement? I don't know.
 
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Guigsy said:
I'm not sure how I feel about this. I don't think this is what the manufacturers recommend? The tyres are flexing a lot more than they did before. They are camper side walls, so are supposed to be stiff. Could this be generating to much heat and movement? I don't know.
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They still feel and look rock solid and don't heat up any more than they did before, I felt it was dangerous driving at 80psi it was scary and I hated it. Feels so much better now, I've done nearly 1k with 60psi and all is good and still getting 33mpg .
 
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Srp111 said:
They still feel and look rock solid and don't heat up any more than they did before, I felt it was dangerous driving at 80psi it was scary and I hated it. Feels so much better now, I've done nearly 1k with 60psi and all is good and still getting 33mpg .
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I agree it feels much better. And you get better grip. But that doesn't mean the tyres are liking it.
 
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Srp111 said:
Very true , but I can't drive it with 80psi , I may treat them to 65psi , lol 😆
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Going back to my original post there was a lot of good advice about fitting air suspension, half or full. So I rang SAP in Doncaster to get it booked in. Unfortunately according to the nice young lady on the phone its a big job to fit out. my model (adria matrix supreme). They would have to strip out the adria suspension, roll bar etc and rebuild. It's the difference between about £1.5k and £5.5.! Back to square one. Somebody also advised buy more tea towels. At this moment that's our preferred option.

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Swaltham said:
Going back to my original post there was a lot of good advice about fitting air suspension, half or full. So I rang SAP in Doncaster to get it booked in. Unfortunately according to the nice young lady on the phone its a big job to fit out. my model (adria matrix supreme). They would have to strip out the adria suspension, roll bar etc and rebuild. It's the difference between about £1.5k and £5.5.! Back to square one. Somebody also advised buy more tea towels. At this moment that's our preferred option.
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Teatowels are a hell of a lot cheaper too !!
 
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TheBig1 said:
What makes most noise on motorhomes is the contents. I put pieces of non slip material between plates and bowls. Mugs and glasses wrapped in microfibre tea towels. Especially top lockers, I try to pack with lightweight items to prevent movement. The oven is another sound producer and i wrap teatowels on the shelves to deadeden rattles.
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Anti slip material between plates and bowls was our first mod, helps a lot. Remove the grill pan and shelf from the oven and wrap it in a duvet or something and leave it on the bed. I also found the blinds on the two roof lights rattle on mine, so before setting off I wedge a bit of tissue into each one to stop that. We are now a lot quieter when we are on the move. Rear air suspension did little change the vibration and rattles from terrible UK roads
 
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Srp111 said:
Teatowels are a hell of a lot cheaper too !!
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Tea towels stuffed everywhere bit for some reason my grill pan does not rattle but when it starts no doubt it will now the tea towel treatment will be applied
 
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Our microwave rattles and squeaks when travelling. Glass plate and support removed and safely stowed. Have wedged cardboard on both sides, tried tightening the screws holding it on the support shelf but still quite noisy. Anyone have a similar issue?
 
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Swaltham said:
Going back to my original post there was a lot of good advice about fitting air suspension, half or full. So I rang SAP in Doncaster to get it booked in. Unfortunately according to the nice young lady on the phone its a big job to fit out. my model (adria matrix supreme). They would have to strip out the adria suspension, roll bar etc and rebuild. It's the difference between about £1.5k and £5.5.! Back to square one. Somebody also advised buy more tea towels. At this moment that's our preferred option.
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I may have missed it, but what year is your Matrix ?

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DerryW said:
I may have missed it, but what year is your Matrix ?
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It's an adria matrix supreme 670sc. Registered last year, 22, in April. Its our 4th motorhome and definitely the most expensive!
 
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