Thanks Typhoon, but my TV-cable is set correctly, I know how crucial that is. Also my pressures are OK. That's what makes me wonder if it might be that I installed the wrong washers and maybe the clutch packs are simply that little bit too far apart... My converter is brand new and the trans fluid seems OK, too... I somehow think my tranny is alive and wants to test me
I'll put in new fluid with an anti-slip additive and try again, lets see if that helps. I'll return to this trhead at the end of the week for news.