Hello people, at my Opel Omega A Caravan, registration 1993 key number 0039 685 vehicle identification number: WOL 0000 66 P 1 108002 engine number 14677357 I had made the preparations to replace the water pump. For this work there was already plenty of help. Therefore everything seemed clear. However, when I wanted to bring the engine in basic position – ignition OT cylinder 1 – I searched in vain for the thorn on the engine block, which was shown in all description e Marking on the crankshaft belt disc should show. After this presentation I finished my work before the timing belt was loosened and rebuilt. A wrong setting certainly results in engine damage. Therefore, I ask you if there are other possibilities to adjust the engine position correctly – or do newer motors have another adjustment aid? It would be great if I could get support. Otherwise only one workshop bed is left. uch. Best regards, Dieter