Ford 9N looses oil prime to oil pump

I have a decent old 9N that I have running for a friend after sitting for a few years.
I dumped oil into the plug to the oil pump and it gets oil pressure good after this.
But after sitting it is a problem again and again.
Any way to fix this without dropping the pan and inspecting suction tube or pump?

Thanks
 
Probably not.

What weight oil is in the engine?

Could be a badly worn oil pump. Could be a failed joint between the pick up tube and the pump.

Drain the oil and inspect to see if the pick up tube is loose.

Dean
 
He has to split the tractor to inspect the oil delivery system. Yes, do it, and replace the clutch while in there.
 
(quoted from post at 21:59:10 06/11/19) He has to split the tractor to inspect the oil delivery system. Yes, do it, and replace the clutch while in there.

What the heck, Tim, a 9N doesn't have to be split at the clutch housing to drop the oil pan.

On the other hand, by simply removing the oil drain plug and reaching finger or two up there, the O. P. can tweak the oil pickup tube around and determine if the solder joint connecting it to the oil pump is intact, or not.

Doen't matter much, tho., if loose, the oil pan has to be removed to remove the parts for repair.

If it's NOT loose/cracked free of the pump, the oil pump is for sure "bad" and repairs or replacement is made complicated by the fact that Ford thought it would be a GREAT idea to cast the oil pump body in common with the front main bearing cap.
 

Ok Thanks guys.
Ill do a bit of research on the pump removal and replacement and tube in the Service Manual and make a plan form there.

Temporarily I may just add some oil in the plug hole and keep an eye on it via the pressure gauge.

Really don't see this tractor being used very often at this point.

But it will need to be fixed sooner or later.
 

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