10-12-2023, 07:15 PM
That right there is the best explanation of valve lash. Valves get tighter with time, till bad stuff happens. Possible valve head separation. The old NTC Cummins were famous for tightening and causing camshaft issues. In the '70's,80's and 90's we adjusted cummins valves and jakes every 75k miles.
Mark and Marian
1986 #125 (left us for a new home in Oregon)
1999 Wanderlodge LX40
1979 Mc 8 6V92
Pace 28' stacker
Regina Beach SK Maricopa AZ