I don't want to Hijack Anne's thread here. However the crank is end fed so no pressure being lost, and there is a bleed to feed this bearing drilled in the crank case. But thanks for your interest.

Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (undergoing restoration)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)