Oil pump

[Thomas09]

Change a cracked oil outlet hose.How do I get the air lock out of line? IT the line coming out of oil pump. Thanks Tom.

 

[RNGRDVE]

What year, model and size engine are you working on?

 

[Thomas09]

1989 merc 200hp I change the oil outlet line and now have a 2 inch air in the line one person said just run it it will purge itself.

 

[EricK]

The silver phillips screw is the oil pump bleed screw. I had to run my motor and pump the gas bulb while cracking the bleeder to finally get the air out of the line. It took a while, but I was successful. I also had the oil pump running wide open (disconnected linkage) while doing so.

 

[Thomas09]

Where do you disconnet at the link the or the ball swivel?

 

[CHECK16]

EricK answered your question very well but here is a little info from the Mercury Manual also.

Bleeding Air from Oil Injection Pump and Oil Injection Outlet Hose
BLEEDING AIR FROM OIL INJECTION PUMP
With engine not running, place a shop towel below the oil injection pump. Loosen bleed
screw three to four turns and allow oil to flow from bleed hole. Re-tighten bleed screw. This
procedure allows the pump to fill with oil.
BLEEDING AIR FROM OIL INJECTION PUMP OUTLET HOSE
Any air bubbles in outlet hose in most cases will be purged out of the system during operation
of the engine.
NOTE: If air bubbles persist, they can be purged out of the hose by removing link rod and
rotating the pump arm full clockwise while operating engine at 1000 to 1500 RPM: If necessary,
gently pinch the fuel line between the fuel tank and the fuel pump will cause the fuel pump to provide a partial vacuum which will aid in removal of the air.
Reinstall link rod.

 

[Jimway]

And there you have it, text, photographs, illustrated, and color coded. Awesome answers, and only here on "THE" Checkmate Forum.