^ Yes. That led to some anxious moments waiting ~ 30 seconds or so after starting the engine for oil pressure. It was never a problem except immediately after an oil+filter change. In hindsight, I wonder whether the problem could've been minimized by pouring in the new oil BEFORE installing the new filter (based on a hypothesis that air trapped between the pump and the filter was blocking hydrostatic pressure from refilling the pump).
This phenomenon led to my adopting an unusual habit---kissing oil filters in stores to check the difficulty of sucking air through the ADBV. One brand tended to be considerably more difficult than others.
This phenomenon led to my adopting an unusual habit---kissing oil filters in stores to check the difficulty of sucking air through the ADBV. One brand tended to be considerably more difficult than others.