My newly acquired 1972 Mercedes Benz 280SE 4.5 needed a valve adjustment. No one really knew how long since the last one. I understand if this adjustment is neglected one consequence is that the jam nuts and adjuster nuts can get stuck and can't "unlock." This happened to my car. Therefore, the overhead cam oiling tube and rocker arms had to be removed in order to get serious leverage to turn the valve adjusting nut. I used a slightly modified valve spring compressor to remove the rocker arms. Rocker arm clips were removed and reinstalled as part of the valve adjustment process. I did get the valve adjuster nuts "unlocked" after finishing this video which was done on March 31, 2022. Now the engine runs much quieter. Do not neglect this routine maintenance and do it every 7 to 10,000 miles. That is a good time to also check the condition of cam oiler tubes and their holders along with timing chains, guides, and tensioner. It is also recommended to replace the valve cover gaskets and crush washers.
Негізгі бет 1972 Mercedes Benz 280SE 4.5 Valve Adjustment, With Complications
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