Hi Guys,
I have set my lifters now with the engine hot, much better. The slight roughness is proabably caused by the outside ring of my damper has slipped slightly. Now I'm getting good compression and it runs smoothly enough, guess that will be just fine when I get my new Damper. Thanks a lot!
(I always thought setting the lifters when cold was far exacter, but that never got it to run this smoolth :-)
Thanks to all who helped me!
MadMax