Help 351C 4V Drivers side head not getting oil when priming motor

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Hardfacer

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Joined
Mar 22, 2024
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Location
Myerstown PA
My Car
1965 Cobra Kit Car
Put motor together and went to prime before starting. Ran oil pump CCW, Gauge showed 90psi on gauge. Ran for a while with drill and rotated the crank also. Got oil up on the Passenger side head but nothing on the Drivers side. Did I not run long enough is there possible blockage that is not feeding oil to the right side What could cause this?
 
The gauge is on the back of the intake. We turned the pump using a ratchet and it built up that much pressure that it sprung back if it would slip out of your hand.
We then used a drill to turn the pump several times maybe 1 minute continuous at most. Would an incorrectly installed head gasket cause this?
 
The gauge is on the back of the intake. We turned the pump using a ratchet and it built up that much pressure that it sprung back if it would slip out of your hand.
We then used a drill to turn the pump several times maybe 1 minute continuous at most. Would an incorrectly installed head gasket cause this?
Head gasket has nothing to do with it. Rotate the crank slightly by hand while turning pump and see if that helps.
 
The gauge is on the back of the intake. We turned the pump using a ratchet and it built up that much pressure that it sprung back if it would slip out of your hand.
We then used a drill to turn the pump several times maybe 1 minute continuous at most. Would an incorrectly installed head gasket cause this?
If you hook up a drill to the oil pump and crank it, you should see oil coming up to each head, oozing out the ends of the pushrods, onto the top of each rocker. I don't think there's a way to install the head gasket so wrong that would prevent that.

Run that bad boy till the drill smokes. :D
 
The gauge is on the back of the intake. We turned the pump using a ratchet and it built up that much pressure that it sprung back if it would slip out of your hand.
We then used a drill to turn the pump several times maybe 1 minute continuous at most. Would an incorrectly installed head gasket cause this?
Perhaps your drill doesn't have enough "ass" to get the oil moving. Used to be when I used 10W40 racing oil my 3/8" drill wasn't up to the job. It took my 1/2" Black & Wrecker drill to get things moving.
If that doesn't pan out, there must be a restriction from the back of the passenger oil galley to the crossover for the driver side galley. Or heaven forbid you got the rear main bearing installed incorrectly.
 
Thanks I'll try running the Oil pump longer and faster to try and get the oil to get through to the other head. Maybe I didn't give it long enough. I do not want to rip the motor apart. We were leaning towards the head Gasket but sounds like we can rule that out.
 
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