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Tracking measurments

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fesuvious:
(I know I am talking about Discovery's but surely it is applicable acros the range?)

In one of the Land Rover magazines this month it said that the steering bar measurment for a Discovery 1 should be 1230 inbetween the centre points of the balljoints to ensure the wheels are set right.

My question ; Is this the same for the series 2 disco? Does anybody here know?

dxmedia:
I'd say that that article is talking rubbish  :lol: :lol: :lol:

Tracking needs to be done on a per vehicle basis, with the track rod adjusting to give the correct amount of toe in / out. For a permi 4x4 I'd guess that the landrover wants to be 0 degrees.

If you use a specific measurement, any alterations in the track due to alterations in chassis, bushes, slight differences in pattern parts will all effect this measurement and if using a static length, then premature tyre wear can take place.

If the tracking is set at 0 degrees (a guess) then it's very very easy to do at home.

Get a sliding pipe of some description, metal clothes hangers have them - the 2 pipes which go inside each other with a plastic thumb screw to lock. Park the car flat, get a couple of bricks and make up a pile at the rear and front of each wheel on the inside edge on each side.  Rest the pole on this block so the pole is touching the inner middle of the tyre on each side at a known point. Slide the pole until it's touching the other tyre at the same point on the other side.

Repeat this at the front and the back of the tyre, and adjust the track rod so that the pole is the same length when it's touching the tyres front and back.


That's a convoluted description of doing something which is very very simple. But, that will set it for exactly your car.


If someone can give the amount of toe in in degree's, then a quick bit of trig would tell you exactly how much shorter the length at the front should be over the rear for a specific size of tyre and place on the side wall.


Or take it to your local garage and have laser alignment done for about

Disco Matt:
What he said

If there was a one-size-fits-all length for the track rod then LR wouldn't bother making it adjustable. Just beware some chain garages as they might not necessarily have a clue how to set up LR steering properly. Our local one managed to screw up the centre position on my steering box, presumably by moving things they shouldn't have touched while the track rod end they were replacing was off. Taking it back in for "tracking" had no effect whatsoever!

dxmedia:

--- Quote from: Disco Matt on September 09, 2010, 18:00:49 ---What he said

If there was a one-size-fits-all length for the track rod then LR wouldn't bother making it adjustable. Just beware some chain garages as they might not necessarily have a clue how to set up LR steering properly. Our local one managed to screw up the centre position on my steering box, presumably by moving things they shouldn't have touched while the track rod end they were replacing was off. Taking it back in for "tracking" had no effect whatsoever!

--- End quote ---

The drag link from the steering box to the track rod should have an adjustable bit on it - if you adjust this it will alter the steering wheel center without effecting the tracking ;)

Range Rover Blues:
The measurement given will be a niminal size, so all assmebled track rods supplied to LR would be assembled to that size.  It would provide basic tracking to allow the vehicle to be assembled and delivered.

On a beam axle there aren't too many things that would affect it.

The tracking should then be checked at PDI and set correctly.  For a RRC it should be 0-3mm Toe out.

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