Need picture of C20ne cam on gear position !!

Hi all together, the other day a buddy asked me if I could help him since his GSI Kadett didn’t start. Since I’ve already had a lot of experience with remodeling etc. I looked at it all the time. First I noticed that with OT position on the crankshaft I could never get the cam on position. Can turn as often as I wanted…if the crankshaft was on OT, the cam was about 14 o’clock instead of 12 to the notch???!!! I thought that the timing belt might have skipped and re-set the OT. Nock on notch 12 o’clock and the crankshaft notch on the needle that is mounted on the engine block. When we wanted to do a test run, it sounded like the starter was running empty without load. I knew that couldn’t be right away…… I quickly thought of the white marking on the tooth strap… someone had to w now my problem… since I would like to adjust the engine correctly, I have the problem that I can’t rely on the notch of the cam, because this position seems to be wrong. Can someone possibly show me a photo like the nock has to stand so that it is in OT properly? Will then proceed so that I put the crankshaft on position because it was correct and try to find the old position again with the help of a picture. Or does someone have n och another suggestion how I could set this right without respecting the notch of the cam??? Thanks in advance… ;o)