Hello, I blew a turbo while towing a 5th wheel trailer. I had to drive with it for 8 miles before being able to disconnect and have the trailer towed. Exhaust was pouring out black smoke that went to white and the motor started hammering. I pulled the turbo and a piece of cast aluminum was inside. I pulled the exhaust manifolds & 2 rear cyclinders on the passenger side & they were full of diesel fuel. I put the motor back together & drained the oil. 5 gal of oil came out. Replaced oil & started motor up and it idled rough. Still pouring out white smoke. Any ideas?