OK. maybe it's working permanent nights that's doing it, but I can't get it into my head how I put the cylinder head nuts on, there's no reference to them in Haynes or my factory service manual, but the internal ones on my motor are round, or have I just lost the plot.

tony
sorted turns out you use an allen key sussed it out when I held one to the light

[Edited on 12/4/12 by mad-butcher]