Alex in SLC Posted July 11, 2020 Report Share Posted July 11, 2020 (edited) Hello Everyone, Question: I just got done replacing the "oil pump cover gasket" on my rotor style pump in my 48 Dodge D24. I DID NOT remove the pump from the engine. But when the cover came off the outer oil pump rotor came with it. I replaced the gasket, put the outer rotor back in, put the cover back on, tightened it up, filled the engine with oil and now I don't have any oil pressure.... What have I done... Did I put the rotor in wrong? Any ideas would be appreciated! Thanks you, Alex Edited July 11, 2020 by Alex in SLC Quote Link to comment Share on other sites More sharing options...
busycoupe Posted July 11, 2020 Report Share Posted July 11, 2020 The gasket is supposed to be very thin. Some pumps use a special square cut o-ring. If you use the wrong gasket there will be too much space between the rotor and the cover and not build any pressure. 1 1 Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted July 12, 2020 Report Share Posted July 12, 2020 You need to prime the pump as it is now empty. Best way to do that, without removing the pump from the engine, is to pack the rotor cavities with assembly lube, or Vaseline. This will allow the pump to pull up oil from the sump and start pumping again. The assembly lube, or Vaseline, will break down in the oil and won’t cause any damage. 2 Quote Link to comment Share on other sites More sharing options...
Alex in SLC Posted July 12, 2020 Author Report Share Posted July 12, 2020 Thanks Merle! Rookie mistakes, but I'm getting there! Quote Link to comment Share on other sites More sharing options...
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