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More info, 116/113S rating, at first tyres were inflated cold to 50,, (thats pretty much standard in the caravan world) after running for an hour they would reach 60lbs, so ATM they are at 55cold and still reach 60.
If 60 is too high I doubt the trailing edges of both the inside and outside tread blocks would be feathering, on all 4 tyres.
Keen to have a wheel alignment done
Being on springs the alignment will be a lot more labour intensive. Once the measurements are sorted the hangers will need to be cut off and rewelded in the right position if that is the cause.Axles may have been bent to allow for road camber or just not set up correctly. Really no need for aggressive van tyres unless you play on muddy slippery tracks in my opinion.
Don't go nuts like that unless it is wildly out. The axle pads have a lot of slop on the spring bolts. You'll probably be able to just loosen off the Ubolts, align the axles with a tape measure and then retighten the Ubolts. Make sure youre on level ground, like a flat concrete slab etc.
More info.. No shocks.
We had bad tyre problems with our van and an independent bloke found the tracking was way out. Also the wheels were so badly buckled from bad manufacture that they couldn't be balanced properly. Tyres wore very quickly and shocks clapped out.
I complained to the yards owner (now deceased) and he just said with no justification or evidence whatsoever..... "You've abused it".
His face was a real delight to see when I took paperwork around from the small claims court showing I was giving him 10 working days to fix or pay for it to be fixed or I'd sue him. This was after those upholders of consumer rights in WA told me "I hesitate to approach Mr *** as he's an icon of the industry".
My response was more than just robust.
Anyway, all good since we got it done and no problems for some years as we still travel over all sorts of roads whenever we can. Well worth getting suspension checked as many vans are just slapped together with no care or skill at all.
AlanH.
https://youtu.be/RUGzJpLeC1E
May be of help, Pedro.
Well my first thought is I'm not trusting anyone running MPC tyres. They fail. They ALL fail..
after doing the math the pressure required is 54.23561023566 lbs... so 55 all round is (this guy) correct.
after talking to a mobile wheel aligner it seems you cant wheel-align roller/rocker suspension.
The solution to this problem is to REPLACE both axles....
I have my rear axel of my van out at the moment due to the spring locating block on the left rear axel that has moved due to poor welding. I was going to flip the axel as well but I found out that the axels are pre bent so I would have to also cut and Re weld all the spring locating blocks on both axels, so I decided to leave it.
I also found the bushes worn in the spring eyes and have replaced with bronze bushes and new bolts, I did have the front right tyre wearing on the inside and when I measured between the wheels before I started all this that there was a 10mm difference between each side measuring between the edge of the rim of each rim, so when I reassemble I will leave the u bolts loose and use straps to see if I can get the alignment a bit better..My tyre placard says 65 psi ,the tyre max is 65 psi as written on the sidewall, I run 45 cold and when hot it goes to 50 so I am happy with this.🙂🙂
Did said aligner look at your suspension? Replacing the axles will only cure the problem IF
the issue is with thethe axle. It will not address the issue if the root cause is inaccurate placement of the spring hangers.
Does the 'van have radius rods?
Unless the axle is bent, which i doubt very much then I’m not sure what an axle replacement could possibly achieve
The only thing I can think of is that he would offset the axle pads to correct the alignment, but you don’t have to replace the axles to do that.
He’s right, the roller rocker suspension cant be aligned, but he should check it for anything weird like wear and also to see if the spring pack bolts are all in the correct place and you don’t accidentally have an incorrect spring pack - there are centered bolt and offset bolt packs for 2nd/4wd wheels.