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8n oil pressure

G

Greenpully

Member
My 8n sat for two years out side I drained all fluids. flushed all with diesel fuel. drained crank case added new oil,turned engine(plugs removed) with huge electric drill,about 200 RPM NO oil pressure.Primed pump thru relief plug NOTHING.I removed gauge from right rear engine port ,not a drop.What is my next option?Thank you GP
 

when u primed it, were u aware that there was a second hole past the hole the plug comes out of? u have to get the oil thru the inner hole too, or it will just end up in the oil pan, not the pump.
 
I find it easier to prime the oil pump by squirting oil into the line that goes to the gauge. Provided of course that you have a 1/4" line there:)
I use a pump type oil can to squirt the oil in. Then cranking the engine by hand, If I get more oil out than I put in I know the pump is working OK. If I get some or most of the oil I put in, then bubbles, then nothing, I know the pickup tube is loose or damaged.
 
Greenpully,,I Just take the line loose from the gauge and hook a oil pump can, old time ketchup squirt bottle full of motor oil or garden pump up sprayer with a piece of vacuum hose. Put about 2 cans/bottles of oil in there, hook the line back up to the gauge and crank it over or start it up, then watch for oil pressure when cranking over or as soon as it starts up. If not shut it down and repeat. Putting oil in there fills the oil galley, pump and oils the crankshaft, cam, and rods. Plus it is much easier, and less of a mess than the relief plug at the front of the engine that sometimes takes two or three tries to get it to prime.
If you get no oil pressure,drain oil and reach up into the drain see if the pickup tube is loose.If it is loose the pan will have to come off to repair it.
 
Illustrates what some others have said:
ORSUsB7.jpg

l2IHWBX.jpg
 
Thanks to JMOR for good illustration I now know I did NOT have pump primed.Thanks to other gentle men for their kind and helpful hints.GP
 
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