Okay, here's the deal. I just bought a 1984 380SL. The owner had just had the timing chain break and did $6000 damage (ay carumba!) which he had fixed at the local Mercedes-Benz dealer before he died. I do not know if it has the single or double row chain...I was told that they changed sometime around 1984. I ALSO do not know if the replacement chain was a double or single row.
What should I do?