I want to run the procedure, as I understand it, to check for timing chain stretch on 2.5 190D 1986 mod.
1. Remove valve cover.
2. Rotate engine in normal dir. until timing marks on cam line up.
3. Read the degrees the crankshaft lacks being at TDC.
1. Do you use the bolt on front of crankshaft to turn engine over.
2. Can you turn the diesel engine over without releasing the compression in some way.
Please tell me if I have the procedure down right and answer the 2 questions.
1986 190D 160,000 mi.