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DiscoWeb Bulletin Board » Message Archives » 2003 Archives - Discovery Technical » Archive through August 18, 2003 » Violent steering judder/shimmy « Previous Next »

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troy Harlow (Th22973)
New Member
Username: Th22973

Post Number: 1
Registered: 08-2003
Posted on Wednesday, August 06, 2003 - 10:03 pm:   Edit Post Delete Post Print Post

I just recently acquired a 1994 discovery automatic. At highway speeds, it occasionally (the steering wheel) shakes violently. Especially when you left of the gass usually around 50 mh or greater. I repolaced the stablizer steering shock, but this made it worse. When I am in fron of the vehicle lying on the ground I can move the tie rods vertically, It seems to havew some vertical play but no horizontal. Do discovery tie rods have vertical play. Or should I be looking for something else. Other than that I love the vehicle
 

Geoff 93 RRC (Geoff)
Member
Username: Geoff

Post Number: 84
Registered: 11-2002
Posted on Wednesday, August 06, 2003 - 10:15 pm:   Edit Post Delete Post Print Post

A somewhat well worn topic. Could be:

- ball joints loose
- swivel pre-load out of spec
- out of balance tires
- radius arm/panhard rod bushings shot

You should have no "play" in the steering rods. They can rotate slightly +- 15 degrees (approx) on the ball joint.
 

Joe Still (Joedisco)
Member
Username: Joedisco

Post Number: 97
Registered: 09-2002
Posted on Thursday, August 14, 2003 - 09:30 am:   Edit Post Delete Post Print Post

A replacement steering box is probably in your future. At least that's what it took to fix mine. I got used with 70k miles. Next time I'll get Meridian in San Diego
 

Mike Shoemaker (Shoe)
New Member
Username: Shoe

Post Number: 8
Registered: 05-2003
Posted on Thursday, August 14, 2003 - 05:42 pm:   Edit Post Delete Post Print Post

Swivel bearing preload is what fixed my problem. With no axle or seals the preload should be 15-19 lbs of CONSTANT load when swiveling the outer hub. But there could be more problems as stated above. I would check preload first.
Mike
 

Gordon Turner (Gordo)
New Member
Username: Gordo

Post Number: 16
Registered: 07-2003
Posted on Thursday, August 14, 2003 - 10:46 pm:   Edit Post Delete Post Print Post

I vote preload also. Pretty easy to fix yourself. I had the same problem on my 89RR. Is it more frequent on expansion joints, potholes etc? Gordo
 

Joey (Joey4420)
Member
Username: Joey4420

Post Number: 157
Registered: 04-2003
Posted on Friday, August 15, 2003 - 07:22 am:   Edit Post Delete Post Print Post

I was in the Land Rover Dealership the other day talking to the mechanics, and they had a mid 90's RR in the shop for similar issues. The mechanic was watching under the hood and under the vehicle (two different times) and another mechanic was turning the steering wheel with the motor OFF. I could hear a popping sound and could see the RR move from side to side.

I asked the third mechanic what was wrong and he just glanced over and said PanHard Rod.

I was also told that you can test this yourself by just leaning against the drivers side front fender and pushing. If you felt or heard popping, then you need new PanHard Rod bushings.
 

Dean Brown (Deanbrown3d)
Senior Member
Username: Deanbrown3d

Post Number: 733
Registered: 02-2002
Posted on Friday, August 15, 2003 - 09:09 am:   Edit Post Delete Post Print Post

troy
I had the same symptoms on a passenger car and it was the drive shaft, so you might want to just check if there's any play in that.

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