I thought a collapsed lifter will not self-heal. A collapsed lifter is loud. Put a 0.010 inch feeler gauge between the rocker and valve stem. The noise volume should reduce. http://remanufactured.com/Engine_Noise_Diagnosis_101.htm has some interesting tips about engine noise diagnosis, fyi. Thanks, Gary H. > -------Original Message------- ... > Once a lifter has collapsed . can it pump itself back up in time > and not need to be replace? Could the noise be something other than a > lifterr? ( The rocker assembly is ok.- cam lobes seem to be ok) I > like to see any input...............Thanks...................MO -- -- Please address private mail -- mail of interest to only one person -- directly to that person. That is, send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en.