I tried earlier with no response so I will try once more. I have the valve cover off on my 84' 300d and want to check the stretch on my timing chain. I do not have all the proper tools to do so but was wondering if there was a rough and simple way of doing so for the meantime? I have the hood closed with all the rain and I am nervous leaving the cover off with all the moisture in the air! Please offer any suggestions. I hope I did not expose the insides of the engine to the elements! Thanks for any suggestions! Joe