The next job is now on the bench. The steering box has slowly been leaking oil from the bottom seal. This is a common fault. You can just change the oil seal, but I think that the bearing has some play in it, which means any new seal will soon start to leak. So, a complete stripdown and inspection is required. The drop arm is quite difficult to remove. I applied a bit of heat and then belted it with a hefty hammer. It soon came off. We shall see what it looks like inside..