/forums/images/graemlins/confused.gif OK, I do not want to sound like a bucket mouth here so I will get right to the question. I have a 84 Silverado Suburban K10 4x4 that I put a 325 hp RECON remanufactured engine in back in Feb of 2002. I have an oil leak from the Harmonic balancer or front seal area of the motor. The problem is this. The Engine now has 8000 mi on it and is out of warranty, So I am on my own here. I have already replaced the oil pan gasket and seals as well as the timing cover and the seal around the harmonic balancer. I have replaced all of the parts 3 times now and the leak has not changed. I even went as far as getting $30 reusable gasket/seal for the oil pan kit. Still the leak is the same. Now the area seems to be in the front seal to harmonic balancer area but due to the 4x4 it is hard to pin point while running. the really weird thing is that it will NOT leak while cold. It could take the engine longer than 10 minutes before it starts to leak but once warmed up it will leak a drip every 1-2 second from that location. After trying to fix this myself i have taken it to 2 different shops and the cannot pin point the leak either. I know it is NOT from the fuel pump, valve cover, or intake manifold. IS it possible that there is a crack in the block or that the crank is bent causing the front seal to leak? I am all out of ideas and very frustrated. I understand that diagnosing an oil leak is hard over the Internet so possibilities would suffice. I really am at a loss here. Thanks in advance.