Thought this might be of interest. The power steering developed a serious leak over a days motoring leaving me stranded. I though it was coming from the steering box but I was wrong as it was leaking oil from one of the pipes leading into the top of the steering box. The cause was the intercooler pipe rubbing away at the power steering oil supply pipe until it sprang a leak - or more precisely the nylon sleeve covering the pipe had. Got home by plugging the leak with some epoxy type metal putty stuff (very low pressure system). Took the grill, rad, etc off to get at the problem and saw that the other pipe had almost worn through. Binned the nylon sleeves and cut out the offending sections (with a proper pipe cutter to prevent metal crud in the system) and replaced with a bit of fuel line and jubilee clips and some cable ties to keep things out of harms way. Worth checking as it's very difficult to see with having a real good poke about. If the intercooler pipes are just pulled back half and inch they have enough clearance to prevent the problem in the first place. One thing to note is that the union on the top of the power steering box is a tapered thread and is designed to allow the pipe to move when done up to hand tight- you cannot tighten up the union as normal until the pipe is fixed, I know I tried and nearly buggered things up before I twigged it.