As mentioned, all the little ball and socket linkages just pop off real easy. Just label everything before you take it apart. Use a wrench on the bolt to the PS pump to turn over the engine. Never use the cam shaft to turn over the engine. The cool bent Hazet wrenches really make the valve adjustment a breeze but many guys use homemade bent ones. Regular combination wrenches, are almost impossible to use.

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Orland Park, IL
1985 300SD 215,000 miles