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Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2646

2010 Defender 90 Puma 2.4 SW Alpine White

my Puma has had a tendency to pull left since new, which was somewhat solved by JLR replacing the entire front axle.

But having swapped out my BFGs for Goodyears, the truck has started wandering again.

Wheel alignment shows a 3 deg castor on the left and 4 on the right, so would using these help correct the wandering? Where does one buy these?

The wheel alignment chap reckons a 6mm spacer on the left front radius arm should push the left wheel forward enough to cure the issue, but I'd rather get a better solution if possible.

thanks --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

23rd Aug 2018 7:28am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17480

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

I am doubtful that a one degree difference on castor from one side to the other would by itself make much difference, in fact I am a little surprised that it is even possible to measure with this accuracy.

You may find that you can obtain 1 degree of adjustment simply on the fit of the swivel on the end of the axle tube, since they are only bolted on (no dowels) and they not fitted bolts.

LR build tolerances are so sloppy that it is not unknown for a vehicle to have a difference wheelbase on one side compared to the other, so it may be that some very accurate chassis measurements and carefullyshimming would sort it out.

Part of the problem is that there are som many things that could cause a tendencey to wander, from suspension bushes to wheel-bearings, from tyres to steering, from chassis geometry to, well, just about anything really. it can be very difficult to pin down.

23rd Aug 2018 8:12am

AndrewS

Member Since: 10 Apr 2007
Location: Hereford
Posts: 3708

2013 Defender 130 Puma 2.2 SW Rimini Red

my 130 is only a 130 on the passenger side its a 131 on the drivers

I don't think I have ever had a Defender that's had the same wheel base both sides. Go and measure your truck and see what differences there are

130's have feeling's as well you know

23rd Aug 2018 9:39am

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2646

these are the wheel alignment figures:

Click image to enlarge --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

24th Aug 2018 9:44am

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