No Oil Pressure While Cranking

gnx547

Member
Sep 26, 2006
283
1
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I disabled the fuel & ign and I cranked the motor for a few secs to build oil pressure through the engine. While cranking the oil pressure needle did not move at all. I checked to make sure the oil sending unit is plugged in and it is. I removed the sending unit and oil did come out, so I know there is some pressure. I hooked up an oil pressure gauge and cranked the motor for a few secs there is no pressure reading on the gauge. I removed the distributor and spun the drive shaft with my drill and I have oil pressure reading on the gauge. Why is it that I don't have any pressure reading on the gauge when I'm cranking the motor? Any ideas?
 
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Never seen the inside of a pump but maybe a problem there is the only other thing or a possible air bubble that you got out with the drill if that could happen have you tried putting it back together now that you got pressure with the drill.