I bougth a stetoscope to figure out where the knocking is comingt from on my 300d and I am 99% sure the noise come from the head. More precisely the 4th cylinder counting from the front of the car.


It sounds like a valve tapping, no odd coises comeing from the bottom end.


Think I can save it with a valve adjustment ?

Know where I can find a DIY online for adjusting valves on a 1985 300d ?

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1985 300D : the clean one 180k miles - Now passed onto my parents.
2000 E39 M5
2002 e46 330xit
1991 mustang notch (project)
1970 chevelle (project)