W126 300se tappet noise at 3000rpm

[phil222]

Apart from having a cold start problem, I have tappet noise a 3000rpm. I am wondering if it might be an advance / retard problem, as the engine runs very well and only starts ticking at higher revs. Does anyone have any ideas.

 

[andymerc]

Is it a tappet noise or is the engine pinking ? Check the spark plugs for burning oil poss valve stem seals need replacement if signs of burnt oil.

 

[phil222]

Hi. The engine runs fine accept cold start problem. There isn't any smoke. What will the plugs look like if it is burning oil?