if you dont mind me asking how have you beld the system turning th steering lock to lock? how loud is the noise as you will get a bit of noise espiecially on full lock, possibly the steering rack itself? you really need someone to listen to under the bonnet while you do it so they can pinpoint it, a large screwdriver is always good as a stephoscope, but you may hear the noise transmitting through other components as well so be aware, if the pumps okay id be looking at the rack
__________________
------------------------------
------------------------------
|