FORD EXPLORER OIL PUMP

I Have A 1994 Ford Explorer, On Feb. 2nd I Replaced The Lower Intake Manafold Gasket. When I Finished I Started The Vehicle And About 3-5...

I Don’t Believe The Shaft Moved Out Of Place, But I Had To Change The O Ring On My Oil Pump Drive (first Picture) And I Can’t Get It To...

Have Already Diagnosed The Problem But Never Have Done It Before.