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

[Cleveland Crush]

We pulled the motor and took the plugs out on rear of block right side filled with oil left side dry. Looks like a total tear down unless we can figure this out.

Sure sounds like the #5 bearing at this point.

 

[MAD IRISHMAN]

I'm assuming you checked the right side plug depth? Run a wire down the passage from the plug down to the main bearing to check for obstruction. Otherwise you could pull the pan and check # 5 main bearing orientation. I'm really curious about what the issue is.

 

[MAD IRISHMAN]

I'm assuming you checked the right side plug depth? Run a wire down the passage from the plug down to the main bearing to check for obstruction. Otherwise you could pull the pan and check # 5 main bearing orientation. I'm really curious about what the issue is.

Well egg on my face! Upon further rumination I went back to some tech files to confirm my suggestions. Actually I was WRONG that the bearing orientation would cause your problem. Even if it was not orientated correctly it wouldn't impede oil flow to the left side oil gallery. As the picture of the #5 main saddle shows, the oil transfers from one side to the other UNDER the bearing shell. So if you do take off #5 main cap and bearing shell, along with the pipe plugs out, you can verify by sight if both passages are unrestricted.