2002 disco over sensitive to road bumps , rolls a bit

willis · Oct 22, 2007

Please give me some advice.
Visually checked all bushes joints springs etc.
Replaced dampers with monroe gas shocks
Had tracking re set.
Still dont seem to be correct.
please help

richp1970 · Oct 22, 2007

may sound supid but have you checked the tyre pressures?, remember my disco 1 rolling a lot, till i put some air in them

willis · Oct 22, 2007

yes about 30psi , 18 inch wheels. is this correct

slob · Oct 22, 2007

when yer say 'visually checked bushes' do yer mean you looked at them or did you get a crowbar in there?

willis · Oct 22, 2007

visually and a bit of feel for play, but no crow bar

slob · Oct 22, 2007

oo gert a bar in there and give em a good tug

willis · Oct 22, 2007

Will do

discoed up · Oct 23, 2007

Have you driven another disco with 18" wheels to compare it to or has yours deteriorated noticably over time? i have the same setup and mine is quite sensitive to bumps in the road and it does roll a bit. are you getting any strange clunks or knocks from the suspension???

willis · Oct 23, 2007

No knocks etc, only disco ive driven. What tyre pressures do you run at?
Checked all bushes today, crow barred what I could all seems ok.
Put the two best tyres on the front to see if it improves

Mantamad · Oct 23, 2007

Tyre pressure should be 28psi at the front, 38 psi at the rear - you will need a bit more air in the rear ones.

willis · Oct 23, 2007

thanks

accywingy · Oct 23, 2007

Mine's on 18's and hardly rolls at all. It had 16's on it when i bought it and i did notice a difference in the way it drives. It's a much harder ride but rolls loads less, infact on the country roads it's pretty impressive. But it tram tracks (if thats the correct terminology??) a lot more. Infact on certain roads it's damn annoying! I assume it's down to the wider tyres than the 16's. My 200 tdi and 300 tdi's both rolled a lot more. Changing the tyres on the 300 made a massive difference!

burtonboy · Oct 24, 2007

body roll is controlled by the ACE system - my 2001 disco has very little roll at all - it corners great

It may be your 18" wheels that cause a harsher ride - noticed that with mine when i first got it & have heard it said several times that the 18" wheels notice the bumps more than the 16" ones - especially for the rear passengers!

i have my tyre pressures set at 28 front & 35 rear (helps lessen the bumps a bit)

slob · Oct 24, 2007

int it obvious, if yer got bigger wheels on , yer have smaller profile tyres. as a fair amount of suspension is yer actual sidewall you in effect take away some of the shock absorbtion by uppin yer wheel size.

this improves cornering , usually, and stiffens up yer ride resulting in more bumps and shocks finding there way through the vehicle body.

if you want to do it properly , when you go up a wheel size you should really change yor springs for slightly bouncier ones

burtonboy · Oct 24, 2007

yup - as Slob says the tyre (or the air in it) forms part of the suspension so - less sidewall = harsher ride

3682d1193221081-2002-disco-over-sensitive-road-bumps-rolls-bit-tyre-difference.jpg

think you'll find that most TD5's with 18" wheels came like that - as all TD5 GS & ES spec models came with 18" wheels as standard & cos mine's got 3 almost new & 1 brand new tyres on it (about £900 worth of wheels & tyres) - it's a bit expensive to change them to 16's

discoman1 · Oct 24, 2007

I have a 2002 Td5 Disco and it does not roll as it has ace but it is quite harsh over bumps and I read in the forum that Goodyear Wranglers which I have fitted are the caause. Dont know what tyres you have but could be worth a check.

Buzzcox · Oct 24, 2007

Have you checked the shocks and springs?
Steering damper and rubbers?

discoed up · Oct 25, 2007

Willis, your concerns are all going to be relative to what you were driving before you bought a discovery and wether or not you have owned a large 4x4 previously. Before i bought my disco i had an audi a6 quattro sport 2.8 which was quick, stiff, and cornered very well with almost zero body roll so in comparison the disco was like a thames barge. I had owned a hilux surf before the audi so was expecting the disco to roll but in all fairness as others have posted it does corner very well (for a big 4x4) and does not have loads of body roll (for a big 4x4). so in short if your last car was lowslung, sporty, and quick then you are going to take a while to get used to the disco.

burtonboy · Oct 25, 2007

discoman1 said:
I have a 2002 Td5 Disco and it does not roll as it has ace but it is quite harsh over bumps and I read in the forum that Goodyear Wranglers which I have fitted are the caause. Dont know what tyres you have but could be worth a check.

yep - I've heard that about the wranglers as well - same ones on mine - but seeing as I haven't driven a td5 with 16" wheels I can't really compare it.

willis · Oct 28, 2007

Hi,
Thanks for all your help fellow owners, I have fitted pirelli scorpion st's all round and the difference with the correct tyre pressures is as good as it will get i think.
Any one else with Monroe adventure shocks fitted?
How do you rate?
WILLIS

2002 disco over sensitive to road bumps , rolls a bit

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