1979 case 580c fuel injector pump leaking into crankcase

Hi, new to the forum. Just bought this backhoe and it needs some TLC. The injector pump was leaking fuel from throttle shaft so I took it off and replaced those seals along with the drive shaft seals. Put it back together and crankcase filled up with fuel while purging injectors. Took pump off again and changed out seals, put pump back on, got engine running and all seemed fine. Next time I started engine, was warming up, and decided to check oil level, so shut off and checked oil level was...

1979 case 580c fuel injector pump leaking into crankcase

1979 case 580c fuel injector pump leaking into crankcase