After all the excitement of getting the 1974 Tii to start, it is leaking oil at the filter housing/oil filter gasket only while running. While setting the timing which went well I noticed a small puddle of oil on the ground underneath the oil filter, with lots of spray on the alternator. I filled the engine with 20W50 and new oil filter yesterday before setting the timming. I suspected the oil was to thick so I changed the oil to 10w30 and a new filter which did not help, still leaking at the oil filter/housing seal. I observed spray from the bottom of the filter housing/oil filter gasket which comes around 15-20 deconds after starting the motor. The motor was rebuilt a few years ago but it never ran until yesterday. Am I looking at a bad oil pump, pressure relief valve install, blocked oil passages? I'm stumped. The oil filter housing gasket isn't leaking, its bone dry, the dip stick rubber hose connection is good. I guess i will need a new oil pump.
Any help or ideas identifying the problem would be great.