LakeBob Posted April 10, 2022 Share Posted April 10, 2022 Got the rig home and started working on a few maintenance items. My first diesel, slowly working my way up the learning curve! Just noticed this opening in the back of the engine block, just behind the head. Appears to be a vent ? Should there be some type of vent plug in this opening ? I remember reading something about a "slobber tube" is this related? Thanks! Link to comment Share on other sites More sharing options...
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