Thanks for that.
serves me right for not being thorough, the collar shown on the drawing in the link was not attached to my quill, upon inspection its stuck to the bottom of the drive pulley assy still attached to the drill, obviously come loose and remained there.
And it looks like my upper bearing is the wrong way round.
The bearings are deffo shot, the lower one wasnt fitted proper, the shaft is scraped on one side, as though they fitted the bearing on an angle, and the inner race is galled on one side.
The upper bearing is shot too, but that is probably because the collar hasnt been preloading it.
Thanks for your help chaps, I can now carry on with the refurb, allthough it now looks like I'll be using a QJ bearing in the bottom and a deep groove at the top but thats going to be an improvement anyways, as the only way of getting preload would be to squeeze the collar onto the quill, not a reliable method, still I spose this is the cheapest range drill.
Last edited by dr pepper; 04-12-2013 at 07:31 AM.
Build it, bodge it, but dont buy it.