No oil pressure after oil change in 8n.

Mobile Wrench · Jan 9, 2010

My little 9n with an 8n engine normally has 15-40 psi of oil. I changed the oil and filter last night and now it wont pick up. Is this common, is there a simple way to prime these monsters ? I have let it run for a while, and it is not picking up at all, 0 oil pressure.

Pitch · Jan 9, 2010

On the front of the engine there is a cap screw with a spring behind it. You can pump some cornhead grease or gear grease in there and it may prime the pump. It is also possible that when you removed the drain plug you dislodged the pick-up tube,if that is the case you are screwed. The pan must be removed and the pickup resoldered to the pump.

Anonymous-0 · Jan 10, 2010

Don't run the engine at all until you get it fixed. Turn the engine over without starting it to check for oil pressure after you prime it. Dave

JMOR · Jan 10, 2010

If the oil pump pickup tube is broken lose at the tube-to-pump joint, you can reach in thru drain hole & feel the looseness. If so, then as others said, it is pan removal time. You can see below. Also, the place to prime. Don't drop the relief plunger &/or spring.

Mobile Wrench · Jan 10, 2010

THANKS SO MUCH FOR THAT !! THANX TO ALL ! VERY INFORMATIVE FOR THIS NEWBIE. HAPPY NEW YEAR, NOW I KNOW WHAT IM GONNA DO WHILE THE RAVENS ARE SPANKIN THE PATRIOTS, THEN I WILL BE DONE AND BACK INSIDE WHERE ITS WARM FOR THE PACKERS GAME, THANX AGAIN EVERYBODY. PEACE.

Mobile Wrench · Jan 10, 2010

Hey there, thanx to everyone who offered up their advice to help me out, just to let u know, I primed the oil galley at the pressure relief, hit the starter and it had 45psi instantly ! Little bit high in my opinion, but hey, thats another day, least its workin, God bless Henry.

Geo-TH,In · Jan 13, 2010

Pitch, I have a jubilee and it takes 15 seconds before my oil guage starts to move and another 15 seconds before it builds to 40 psi. Changed oil to 5W20..didn't help. What do you think my be the problem?
george

Owen Aaland · Jan 13, 2010

(quoted from post at 21:29:11 01/13/10)
Pitch, I have a jubilee and it takes 15 seconds before my oil guage starts to move and another 15 seconds before it builds to 40 psi. Changed oil to 5W20..didn't help. What do you think my be the problem?
george

It sounds like the oil line between the engine and the gauge is filled with oil. Flush out the line so that it has only air in it and see if the gauge doesn't respond much quicker.

No oil pressure after oil change in 8n.

Mobile Wrench

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Pitch

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Anonymous-0

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JMOR

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Mobile Wrench

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Mobile Wrench

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Geo-TH,In

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Owen Aaland

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