Inner sactum oil galley plug

nm9stheham said

I can't get this figured out. Not quite on topic.. but can someone explain how this plug being out effects oil pressure? If not in, the oil travels from the pump straight up past the passages to the filter. The oil is not filtered, and the anti-drain back feature in the filter is defeated, but I can't see how it effects pressure. Perhaps there is some air in filter that is not purged until the oil works its way in there ... ???

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If you're talking about the plug between the two lines. If that plug is missing the oil circles back to the filter and so therefore it does not want to follow the main Galley and lubricate everything and build pressure the way that it
should. It just basically circles the pressure between the path of least resistance which in this case is back to the filter because the passage above it is more restricted it backs up makes a little pressure then the oil goes back to the filter back to the pump making a circle so in effect it is just rolling around in those passages.