Job is coming along well now.
I've finished sorting out the cylinder head, replacing valves etc and it's back on now. Gearbox has been off and put a new clutch in too. Slowly getting everything back together now.
Made myself a cam alignment tool (not the prettiest, but it should be accurate as it's all flat ground material) and bought a TDC pin, so now I'm onto the timing belt.
I got it tensioned yesterday. Then I rotated the system (with crank and cam pulleys loosened) 6 revolutions backwards and adjusted the tension. Then I thought I'd rotate the lot again to see if it was still ok. After each revolution I nipped up the pulleys and loosened them again to make sure the pulleys were located axially. However as I was turning the system round I noticed the tensioner mark was moving about 1-2mm as the belt moved around. It generally seemed to go looser by that amount as I got to half a revolution and then back to the mark as I got round to a full revolution. Is it normal to see a bit of variation as it goes round? I guess it could be caused by the belt having a bit of built in shape.
I've tightened the pulleys now, using the other pulley locking tool, but just want to make sure I get this right, before I get onto the aux belt.
Got loads of pics as I've gone along, so hopefully will be able to help other people with the 'help cambelt' situation!