TIP: Never try and set wheel alignment on a Monday evening. This is only made worse by trying to do calculations on the side of an old cardboard box with a marker pen.
I kinda’ figured that if I could get the front wheels pointing straight ahead that would be a start. I pottered about for over an hour last night fitting some spare angle iron to the front wheels as a guide to measure off. Pleased with this, I measure the distance between the wheels at measured points and worked out the difference.
Then unbolted the track rods, adjusted the lengths buy what I thought was correct and bolted it back. Check this with the tape and it’s twice as bad but in the other directions. Time to down tool and leave well alone!
I revisited this tonight with more success. The front wheels are now centred with approximately 0.5 degrees of toe-in. If I remember correctly the car should toe-in by 2 degrees but I’ll confirm this before I try altering the toe again. Camber and caster are an other story, suffice to say that I won’t be tackling this on a Monday.