I have a front crank seal that gave way last week. It was a split type seal. I had it replaced by a buddy of mine who is an A&P with another split type seal. Yesterday, after the 2nd test run around the patch, it gave way once again. Does anyone here have any input as to whether I should be using a different sort of seal or maybe the problem stems from something else? Until now I had absolutely no problems in the engine area of the plane. It has 60 hours since an oil pump AD fix, but thats all. Any input is appreciated. Thanks