Auburn crankcase oil leak

I would check the spring in the oil pressure relief valve. Possibly the wrong spring (to much tension) or to many washers to boost oil pressure.

Fellow ACD members. I have a 1931 Auburn model 8-98 that has a bad crankcase oil leak at the rear. I have dropped the pan and everything looks as though it is in good condition. Engine is a twenty year old rebuild with only 1900 miles on the engine. Can anyone give me any clues as to what the solution might be. Thanks in advance for your help. lloyd riggs