Air Springs - rear suspension height leveler (under load) ??

[Nino62]

Hi Tinus,
After reading ur reply to my entry, and feeling the rear a little stiffer than before fitment, i saw that the garage had inflated them to 2.6bar instead of the prescribed 0.5bar (unloaded) ....!!!!
I adjusted and have a "back to near normal" firmness from the rear suspension..... I also have my tyres at 2.2 bar(front), & 2.4 bar rear pressures (though i've been told to inflate them to 2.4 bar all round) ..??? Is this correct .. ????

[Tinus lotz]

Sounds about right to me......

[Peter Connan]

Nino, I think there should be at least 0.2 bar pressure difference front to rear, just looking at what the temperatures of my tires do. So I think that's about right.

Don't go less than 0.5 bar in the air springs, otherwise they pinch between the coils on articulation.

[Nino62]

Hi Peter,

Thanks.... your suggestion rings true, as the Troll responds best to the temps I'm trying. I do think i'll go to 0.8-1.0 bar then, for the Air Springs, then I should avoid the possibility of pinching, and still have an assist reserve, should I have more than 2x passengers + groceries, as is anormal weekly occurence...

By the way, I see the fitment garage opted for the single inlet / filling point, fitted nicely out the way, on the rear bumper. I think this is a better option, so should an Air Spring receive a puncture, the whole rear suspension will lower, as compared to being "lob-sided", with one Air Spring failure.....??

This conclusion reached, as I recently saw a Land Rover Disco 2 that had a R/R air suspension failure, and was limping back with the affected side "slumped down"...

[offroadbiker]

Nino, I think there should be at least 0.2 bar pressure difference front to rear, just looking at what the temperatures of my tires do. So I think that's about right.

Don't go less than 0.5 bar in the air springs, otherwise they pinch between the coils on articulation.

When I bought my Trol, guy did not even mention that I have the air springs in the back, only found that out later, unfortunately the left hand one by that time was already pinched as it has a leak (maybe bought it like that...), so I must try and find out whether I can purchase only one of the air helpers.

[Grant]

Drik,


Maak a draai by LA Sport. Hulle supplier sal vit jou een bag gee.

Groete

[offroadbiker]

Drik,


Maak a draai by LA Sport. Hulle supplier sal vit jou een bag gee.

Groete

Dankie - enige LA Sport?

LA Sport Wes Rand = R1050 plus R400 fitment so kyk na by die R1500 vir ned ie een.

[jonathan]

Hi guys. I've got a set from Gremeltech installed at the front and back. Both DIY jobs. The rear is quite easy but the front is a bit of a bitch because as Peter said you have to remove the bump stops, which means removing the coil spring. Then you have to make a small modification at the bottom for the air hose to freely move through.

IMHO I don't think flex would be an issue because in my experience when you do a hardcore trail then the airbags are not fully inflated and then they do move up and down inside the coil. Therefore you have to make sure that the airlines don't pinch when this happens. As far as stability stability is concerned after I installed the ones in front it made a huge difference. The ride feels softer, yet more stable. Hope I'm describing that correctly

All in all I'm quite happy with them. I've had the trol loaded with six faily large adults + luggage and did not have any issues with a sagging bottom or a instability.

[offroadbiker]

Gremeltech = R1150 ex VAt plus postage and then still need to fit so more expensive than LA SPort

[Clem]

My experience of air springs is that they effectively increase your spring rate – which means that over territory that is very bumpy or undulating, your standard shock absorbers will not cope and will overheat quite quickly – effectively leaving you without any shock absorbers at all. You should consider switching to heavier duty shock absorbers when using air springs for protracted periods of time (like on expeditions) where you will be travelling over bad surfaces for long periods of time. If you are just going to be travelling mainly on tar, do not worry too much.