Hi again. I just changed the rubber o-ring in brake vacuum that was leaking oil. Previous owner had used RTV and we know how that turned out. As soon as I did that oil started leaking from somewhere below that. Not sure where. From what I can see underneath it’s not near the vacuum pump. It’s odd to me how changing that seal caused another...larger leak. Any ideas? I’ve got it the shop now and want to know what to expect. Thanks