I removed my power steering pinion today.
It wasn't too difficult but with it being nineteen years old, it did need some persuading with a hammer and a small block of wood.
I used the guide I posted earlier here.
So here are my tips to help you with the removal of the power steering pinion.
If you are doing this by yourself you will definitely need a vice as some of the nuts and bolts have become stuck after all the years being on the car.
Before removing the power steering rack brackets, loosen the 22mm cap while under the car
I removed the left tie rod end to ease removal from the car.
After removing the two 12mm bolts that hold the valve housing to the rest of the rack, I used a block of wood and a hammer and placed the wood against a lip on the valve housing and hit it with the hammer to release the valve housing.
The pinion may be stuck in the valve housing so grip the housing in a vice and use the block of wood on the end of the pinion and hit it with the hammer. The pinion should come out without too much force.
If you are replacing the seal in the valve housing use a 19mm socket to tap it out.