Wheel Tracking

[stro]

Had the tracking done at Halfords they centralised the steering wheel which was always at 11.55 and pulled to the left slightly also my left indicator cancels every time now; cost £29. I was a bit warey of Halfords with some comments on the forum but I am pleased with the service so far and they quoted me £27 for a MOT which I thought was not bad

[Tim_Burgess]

Glad you're pleased. You need to be careful with tracking on 75 & ZT. It should be done with a full tank of fuel or the car may pull to one side, can't remember which off-hand but I think it's left.

[pab]

I see Kwikfit are doing four wheel laser alignment for £33.00. Some people are put off with the quality of these drive in places though.I suppose it's as easy to do the adjustment right than to do it wrong.

[Tim_Burgess]

I always used to go to Protyre (with a full tank), they had all the latest 4 wheel alignment kit and were spot on.

[Dorset Bob]

Originally Posted by Tim_Burgess

It should be done with a full tank of fuel or the car may pull to one side, can't remember which off-hand but I think it's left.

I am not saying your are wrong, but does anyone know why a full tank?
My understanding is only the toe is adjustable on the rear, and would have thought that weight in the back would only affect the camber (if at all).

[T-Cut]

Originally Posted by Dorset Bob

I am not saying your are wrong, but does anyone know why a full tank?
My understanding is only the toe is adjustable on the rear, and would have thought that weight in the back would only affect the camber (if at all).

Front and rear wheel toe is the only adjustment available. All other parameters are set by the suspension design and the effects of altering the toe.

The MGR specification requires the wheel geometry to be set with the car at its normal kerb weight. The 'normal' kerb weight is defined as the empty car with a half full tank. Altering the vertical loading doesn't affect the front wheel toe setting but apparently will have an effect on other variables at the rear. That's what is says in the book, but my local MGR dealer didn't check the tank contents on either of the two laser checks they did on my 75.

The drift left syndrome is a well reported behaviour of these cars and can be seen even with text book geometry. The road camber is a contributory factor which I've had demonstrated by MGR trained technician.

TC

[Dorset Bob]

Thanks for the info. T-Cut, that is very useful.

Originally Posted by T-Cut

The 'normal' kerb weight is defined as the empty car with a half full tank.

This makes sense too, as a car would rarely driven always with a full tank, and half a tank is an average between full and empty

I did have mine laser tracked with half a tank, so I am happy with that.
Apart from the fact that I had some junk in the boot!

[T-Cut]

Originally Posted by Dorset Bob

This makes sense too, as a car would rarely driven always with a full tank, and half a tank is an average between full and empty

But it doesn't does it. The car can't be driven without a driver.
I doubt the 'normal kerb weight' is anything more than a technical definition, so all cars are treated in the same way.

TC

[beejay]

Just had mine done at Weeting Tyres, have it checked once a year, (5 years) and they have never asked how much fuel in the tank and cost £30.42, sound job albeit it has never changed the pulling to left but its a trait with these cars, accept it.

[jondonwar]

How would towing a carvan afect the tracking then if a full tank is needed to drive in a straight line just a thought