>From memory, after doing a top-end rebuild on my factory V8, the oil pickup
comes through the front cover gasket, so a break in this could well suck in
air. If the break were on the internal edge of the gasket any leakage would
simply fall back into the sump and not be visible. Ditto for any leak in
the pickup pipe in the sump, of course.
PaulH.
----- Original Message -----
> In a 1/2" ID oil line, the oil is intermixed with bubbles that are 1-2"
> long, overall the volume of flow looks good. Based on this behavior, I am
> confident that the air is being drawn in before or at the pump, since a
leak
> anywhere else would cause oil leaks. There is no external oil seepage at
> the pump, so I'm inclined to say that it is not drawing in atmospheric air
> at the pump gasket. This leaves an internal air leak at the pump, or the
> pickup to block gasket.
///
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