sorted
here's the thing, my old bike apparently had a 27.0 post jammed down, so there is no chance this bike have been delivered with a 27,2 post original. I remember that post slided easily. But the shim used on my old Orange seems thicker and made of steel. It camed with an unit sporting a Orange logo. I got the bike as a sponsor ride so it was probarly a excibition bike. It had a Indy SL insteed of the XC, XTR rear mech, and so on. But well someone at the Swedish Orange office must have changed the Shim!
mystery solved, I told my friend who now ownes the bike, to get a smaller post if he wants to be able to move it up and down, we did manage by force to get it a bit higher, so for now it's sorted.
Thanks for all of your help!