Lycoming 680 radial oil quantity

[Mikey JB]

Anybody out there with Lycoming 680 radial experience.
(Don't need uninformed opinions!)
Changed oil; filled oil tank; test ran the engine; pulled oil shutoff
handle; returned some weeks later; oil tank empty; motored engine for five
to six seconds; tank still empty.
Options? Procedures?

 

[plsmt]

Pretty common on radials. Sounds like the oil drained into the engine while it was sitting. Check for hydraulic lock before doing anything else.

 

[Bell206]

Options? Procedures?

What aircraft?
Was this a new engine and its first run?