I've been rebuilding the engine on my truck and have been having issues with my front main seal. I've gone through 3 seals and the last attempt I've put a speedi sleeve on the harmonic balancer. The balancer is also new but I still have a leak out of the front main. I am currently running a provent 200 oil catch can and 1" crankcase feet line but no cdr. Any ideas of what could be causing my issues?