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Try something like 37 front 43 rear, as per factory recommendation.
The other trick, which is becoming highly recommended by the towing 'experts' is to drop the front a couple of psi if not using a WDH (WHICH YOU DON'T WITH DISCO AIR SUSPENSION).
I believe 36 in the rear is far too low!
This is just a suggestion from a 21' Bushtracker owner from 2005 to 2010. (If BT still use this idea. )
Crawl under the suspension and check the rubber stoppers on which the suspension pivots. Mine were always wearing out to the point of failure. I carried spares and tools for replacement. (I carried tools for almost every thing on the beast. breakages were every day [bigsad])
I always set-up the nose down a smidge. Towed ok after each change of rubbers.
happy travels.
It will always level out.Quote:
Originally Posted by DiscoMick
Exactly. It continues to pump air into the air springs until the height sensors report the required height.Quote:
Originally Posted by Tombie
Thanks for the tips, the van is 6 months old and bushtracker did a service 1 week before I bought it, said pivot blocks in the simplicity suspension were fine, but I shall keep an eye on it.Quote:
Originally Posted by Dfornow
Have the van hooked up for a run tomorrow with the DO35 hitch underslung on the drawbar, should level it out a bit, it was far too low on the run home from buying it in dubbo.
Yeah I always run a bit lower in the front. 36 cold ends up at 40-41 pretty fast and with ko2 and the very stiff sidewalls, 40 cold is very harsh, only makes the rear suspension work harder.Quote:
Originally Posted by ytt105
I've put them up to 36 front and 40 rear to test run tomorrow.
I run 42 rear (Land Rover official max rear) even with a light camper and still find the tyre temp ends up near 50 hot. 36 front seems fine from my usage.Quote:
Originally Posted by JamesAdelaide
What tyre?Quote:
Originally Posted by DiscoJeffster
Cooper LTZ 19”Quote:
Originally Posted by Tombie
I am talking 35-40deg C ambient up north WA.
Towed my 3250 kg van for 60,000km or so and have noticed a deterioration of the rear shock absorbers, it does pitch a bit at times, exactly what and when to do something about it is another question, thinking out loud, an auxiliary set of shocks that would be easy to change would be good, have not looked into changing the rear shock/air bag assy yet. [bigsad] By the way, the "10% rule" for ball weight is not really, it's not a bad guide line as a starting point, especially if you are towing 1500kg or less, but as you get up you can safely reduce that down to 7 or 8%, you need to be aware of how the van is towing.
Peter
Not an expert but having just towed a van around the big lap the tyres will cop a beating.From my experiences when I put more air in the tyres on bitumen there was less bounce.I would think that with a big heavy caravan like yours the factory recommendations are not enough.
Let them down on gravel, pump them up on the tar.Jax tyres suggested 50 on the D4 rear, this is 55 hot.I think the D4 should be at least +5 from what it says on the decal on the door.
My experience is that the LH front cops it most from the road edges, I swapped it around.I would think 45 or more cold on the van.
There is a algorithm for working out tyre pressure based on load if you do a search.