It's been some time since I've been back here.

My knock is still there. The knock can be heard when the car is first started. When idling I can hear it. When I increase the RPM's to 3K I can't hear it. It also seems like the knock may have decreased a little after putting a few miles on the car.

Again, the car is a 1980 450SL with 170K, hasn't been driven in 8 years. I'v put about 400 miles on it, with the results above.

Any ideas? I've noticed a couple servcies offered my MB service. One to clean the valves the other cleans the fuel injection. Are these services something I should look into having done?