oil pressure flow

Curious to know the exact flow of oil from the pan through the engine, back to the pan. I am working on a 1949 C. It does not have oil pressure and need to know the flow to properly diagnose. Thanks in advance.
 
That engine can lose prime after sitting for awhile. pump oil into the system via any of the small lines by the filter, etc. Brake bleeder can, pressurized, will work.
 
I got it to work. That is exactly what I did. So oil pressure comes from the pump, to the 2 small lines and to the bottom of the filter housing. Does the clean oil from the oil filter go to the cam?
 
dont work on A/C too much but most these old engines have a semi flow filter which means it dont filter all the oil just some that passes through the filter at a time , i know my WD is that way so id say the C is about the same design , i beleive an IT manual will have the flow chart in it , normally the crank gets the oil first then the cam or both get oil from the main oil galley at the same time, fed by pump , then front gears & whats left goes to the top end to rocker rail , runs down over valves ,lifters & cam lobes back to pan , that answer is general for all engines so may very a little but you get the idea how it flows , i have 7 restored tractors varying brands including A/C let them sit for years sometimes & never lost prime that normally only a problem on a fresh rebuild if it keeps loosing prime id start looking, may have a check valve somewhere
 
Follow the red wire to see the only oil passages.

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these little engines are a little different as far as its lube system.

The main oil flow is out the stem of the pump and into the center of the camshaft. There is no pressure build up in the center of the camshaft. the spinning camshaft forces oil out thru the cam bearings to the main bearings by centrifugal force. Notice the wire from the cam bearing to the main bearing. There is small holes in the camshaft that line up with the rods that oil is forced out of onto the rods also by centrifugal force. The rods have funnels at the top of the rod that catches this oil and again forces it into the bearings by centrifugal force. Oil lines come from the pump to the filter and head that takes some of the oil being pumped to the rocker arms and thru the filter. The oil pump has a ball and seat pressure relief in its stem to force oil to the filter and head before dumping oil into the center of the camshaft. The small lines to the head and fiber in the filter builds the pressure to open the pressure relief ball to let the volume of oil into the camshaft needed to lube the rod and main bearings.
That be the way it works blow by blow.
Very simple system but by no means your small block Chevy but has served the little engines well for many years.
 

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