Sleeve bearing turbos are pretty easy to strip down and rebuild, just make sure that you take lots of pics as you go tearing it down to get the sequence the core goes back together. Chances are the exhaust wheel will one with the shaft and the compressor wheel will be secured with a multi-point nut on the threaded other end. Check carefully whether it is a right or left handed thread, and that if you have a low rating (often no more than 5 to 8Nm) torque wrench that can work with a left handed thread, I learnt the hard way that mine didn't and snapped the thread off the shaft of the turbo from my Range Rover necessitating a new shaft complete with exhaust wheel. Before removing the compressor wheel record (paint blob that you can remove once reassembled or marker pen) how it was aligned with the shaft as it's a good idea to put it back on the way it came off incase the whole rotating assembly was balanced together. I used assembly lube when putting mine back together and put some in the oil way too, just to ensure there was lube there on first start up as the oil is unlikely to get to it for a few seconds!
Also work checking the temperature rating of your copper slip because it gets pretty hot around the manifold to turbo exhaust housing
I always take lots of photos but today's little escapade did not go to plan. This machine has stood in the open for some time and everything is blind tight; as the exhaust portion of the turbo came away it cracked the main housing 
