Lifter Valley Inspection MerCruiser lifter valley lifter Inspection So to get here required removal of a lot of items. This turned out to be a lot more complicated than just “Remove the distributer and Intake”. So the mystery deepens. A quick inspection of the Mercruiser 5.0 MPI lifter valley indicates that there is no obvious sign of cracking. Additionally, There is a lot of rust on the intake ports on…