While the fitting is out, give the hole in the block it came out of a good shot of air. That should dislodge any built-up crud in the block passages. You might even crank up the engine for a few seconds to see if you get oil flow out of the block.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!