I have a 53 Jubilee it started making knocking sounds and oil pressure gauge never worked so I shut her down. I bought a new oil pressure gauge started her up and no pressure. removed distributor and with a cut off screw driver turned pump again no pressure and oil appears to be pumping up the oil pump drive shaft big time?? suspecting the relief valve or spring was bad decided to fit brand new pump complete. to cut a long story short same problem spin pump through distributor same thing except more oil comes up shaft .Removed oil pressure gauge line no oil comes up line. removed oil filter no oil appears. Anyone have any ideas? or have a diagram of the oil gallery pressure system? Any Help os suggestion greatly appreciated.