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Thread: D2 front shockers - replacing bushings after 340,000 km's

  1. #21
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    I’m pretty certain Land Rover recommended an unusually low front pressure to increase stability with under steer. The Disco2 rear is pretty hard to control because of the weight on the rear axle and the overhung weight - which is why rear shocks need to be unusually stiff to control it all. A pushy front is a dodge to mask the rear if the rear is not stable. I think its also why they recommend going straight to 40-42psi when towing, to prevent yaw from the trailer push working the tyre carcass laterally - the high pressure makes it feel more stable.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  2. #22
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    Quote Originally Posted by Slunnie View Post
    I’m pretty certain Land Rover recommended an unusually low front pressure to increase stability with under steer. The Disco2 rear is pretty hard to control because of the weight on the rear axle and the overhung weight - which is why rear shocks need to be unusually stiff to control it all. A pushy front is a dodge to mask the rear if the rear is not stable. I think its also why they recommend going straight to 40-42psi when towing, to prevent yaw from the trailer push working the tyre carcass laterally - the high pressure makes it feel more stable.
    Thanks Slunnie, very interesting to read. I've seen a comment before that the Disco2 is heavy in the rear - so helpful confirmation from you.

    I have one D2 with ACE, and one without (the 2004). Does ACE have any impact on this issue at all? Notwithstanding the recent difficulties sorting out the '99 ACE vehicle's tyres, I have always found it incredibly stable on the road.

    PS I'm hoping to get the alignment done tomorrow or soon thereafter, so it will be interesting to see what the results are (it's driving very nicely again, so I have to avoid the temptation not to bother with the alignment)!

    Myles
    '99 D2 Td5 Auto
    2004 D2a Td5 Auto
    ('97 D1 V8, off herding sheep somewhere)

  3. #23
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    Quote Originally Posted by Campaspe Man View Post
    Thanks Slunnie, very interesting to read. I've seen a comment before that the Disco2 is heavy in the rear - so helpful confirmation from you.

    I have one D2 with ACE, and one without (the 2004). Does ACE have any impact on this issue at all? Notwithstanding the recent difficulties sorting out the '99 ACE vehicle's tyres, I have always found it incredibly stable on the road.

    PS I'm hoping to get the alignment done tomorrow or soon thereafter, so it will be interesting to see what the results are (it's driving very nicely again, so I have to avoid the temptation not to bother with the alignment)!

    Myles
    I haven't read the whole thread, but make sure they aim for 1mm toe out ( and anywhere between 0 and 2 is ok. The torque reaction causes the wheels to want to try and "toe in" when accelerating.
    The "toe out" is to offset this.

  4. #24
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    Quote Originally Posted by discorevy View Post
    I haven't read the whole thread, but make sure they aim for 1mm toe out ( and anywhere between 0 and 2 is ok. The torque reaction causes the wheels to want to try and "toe in" when accelerating.
    The "toe out" is to offset this.
    You read my mind - thank you! I nearly asked this question, but didn't!

    Cheers,
    Myles
    '99 D2 Td5 Auto
    2004 D2a Td5 Auto
    ('97 D1 V8, off herding sheep somewhere)

  5. #25
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    Quote Originally Posted by Campaspe Man View Post
    Thanks Slunnie, very interesting to read. I've seen a comment before that the Disco2 is heavy in the rear - so helpful confirmation from you.

    I have one D2 with ACE, and one without (the 2004). Does ACE have any impact on this issue at all? Notwithstanding the recent difficulties sorting out the '99 ACE vehicle's tyres, I have always found it incredibly stable on the road.

    PS I'm hoping to get the alignment done tomorrow or soon thereafter, so it will be interesting to see what the results are (it's driving very nicely again, so I have to avoid the temptation not to bother with the alignment)!

    Myles
    I think it wont make much difference, but the ACE will only help, because without body sway you don't get suspension geometry changes. The ACE is perfect with anything up to a 2" lift. The 2" lift funnily enough is only just barely out of LandRover factory suspension tolerances.

    You're right though, make sure you bother with the wheel alignment otherwise you're killing what is probably $2000 worth of tyres and it is far less fun if you have to nurse the tyres everywhere to not chop them out. I hope it all goes well.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

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