I adjusted the the valves on my 83 300d this morning. I have been driving the car for over a year and this was the first time I did this. Car has had regular service by PO and I have all service records from the past and it's been a little over 20k since last adjustment. No problems with the adjustment but I do have a question about idle speed...
After the adjustment the idle speed is up to around 850 in park, looks close to 750 in drive. Used to be about 650 in drive and was fine. Should I lower the idle speed to 750 in park or leave it alone? I will say the valve adjustment made all the difference in the world with easy starting and no more smoke.

Thanks!

Jim
83 300d 237k 2nd owner Fl. car