Volvo 850 Motor 5252 OT – Point setting

Hello everybody! Ask for your help! I have already read a lot about this here but unfortunately nothing clear! What happened so far: Since my Swedes Steel was very bloated at the last stop and go, I decided to renew the shaft seal, but without disassembly to the head(compressed air). Everything went well! Unfortunately, after a short time, a Simmering pushed out behind the exhaust camshaft wheel. I then took off the one wheel and pressed the ring again. Because the wheels pressed in again. r da longholes have, I did not get the previous setting. I then read a lot about the grooves at the other end, markings on the NW wheels and markings on the crankshaft. I then bought a tool set for setting and locking. I fixed the NW with the help of the tool at the distribution side. One groove above and the other below the Zyko upper edge(picture1). Marking NW wheels at the front fits approximately also (picture2). n pure(Fig.3). My problem is now the crankshaft. On the one hand I have read that the small bridge on the oil pump housing and the notch on the gear of the OT is (Fig.4), sometimes not! At the OT measurement (pen in spark plug hole) this point would be about 3-4 teeth further. the bolt for locking the KW is also identical with the oil pump housing. What is the OT KW and what does the notch on the rib belt wheel have to say (Fig.5)? Oh, come on, let’s go!