A "pumped up" lifter acts like a stuck valve. The lifter fluid is "locked" so the lifter won't give. As opposed to a "collapsed" lifter: will not hold oil to properly open the valve. (Assuming correct oil pressure.) Thanks, Gary H. > -------Original Message------- > Do lifters every get stuck "pumped up"? I've heard of lifters collapsing > but not being stuck up... -- -- 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.