Vehicle & Technical > Discovery

wobble at speed Disco 200td1 1990

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lyndon:
Hi ladies and gents. This is my first post. So please be gentle with me.

I have just purchased a 1990 G reg Disco 1. It has just flown through an MOT.

Last week I had an experience where whilst overtaking a lorry I had a very bad shaking through the steering wheel. I checked everything, bearing in mind I have no experience with mechanics pther than the odd job driving tanks in the army.

It didn't re occur until on my way to work this morning when at 55mph it crept back in. It stopped when I slowed down a bit and started again when I went over a bump?.

Whats causing this?

dazzawhipple:
Barrett

Welcome to the Mud Club

Steering vibration can be caused by lots of things including Tyre pressure, Tyre Balance, Wheel Bearing play, Swivel bearing play, Steering componants worn ie ball joints

Do a search on the forum for steering wobble or vibration

Darren

Dr.Ed:
Had this on my 200TDi discovery - vibration through the steering wheel at 65mph, got the front wheels balanced and problem went away - the fact that one wheel needed >200g of lead to balance it showed where the problem was!

Certainly one of the easiest and quickest checks you can do for this problem (after tyre pressures) most tyre places only charge about £5 per wheel however much lead goes on.

Ed.

Skibum346:

--- Quote from: "dazzawhipple" ---Steering vibration can be caused by lots of things including Tyre pressure, Tyre Balance, Wheel Bearing play, Swivel bearing play, Steering componants worn ie ball joints
--- End quote ---


As Darren said there can be lots of causes but they are all fairly simple to check involving not much more than a jack. After checking tyre pressures for the most obvious problem try these:

First, jack up front end and climb underneath. Check all the ball joints for excessive play, there should be some movement (they are felxible joints after all) but if there is free movement they need to be replaced.

Next, grip each front wheel at 3 & 9 o'clock and give it a wiggle. If you feel the wheel move with reference to the hub (you'll probably feel a definite stop at the extremes) then it'll be the wheel bearing.

Repeat this for each wheel at the 12 & 6 o'clock positions and if movement is present it's your swivel hubs.

If all of the above is fine, then look at steering damper or swivel preload.

Any of the above is do-able with a good manual and a half decent toolkit but the swivels in particular can be complicated if you have no experience rebuilding things.

Finally, it's time to get the wallet out and get the wheels balanced.

Welcome aboard and good luck!

Skibum

Paul.K/LuckyTrucker:
Hi there, I had a similar thing on my 200tdi. Swivel bearing adjustment +one new track rod end and problem sorted
Best of luck with it.

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