Quote:
Originally Posted by rah rah 986
Does it then mean that, if a lifter that has been out of a car for an extended period of time and remains rigid, there is a problem with that lifter since it did not drain down and become compressible again?
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Yes. Two things will keep these units rigid: They are mechanically jammed and therefore useless; or the oil ports a plugged with debris and are hydraulically jammed.
Some years ago, Jake posted a procedure for "cooking" stuck cam followers in Marvel Mystery Oil to free them up (if they can be), or determine which ones need to get tossed and replaced.