Originally Posted by wbain5280

Please be aware that the valve adjusters must turn at or above a certain torque. If the torque is too low the adjuster must be replaced.

Also, modern oil does not contain ZDDP which our older engines need. Many articles have been written about this additive, including The Star magazine from MBCA. Buy some and add it at every oil change or use a diesel specific oil which still has ZDDP. ZDDP breaks down catalytic converters.