Having a he!! of a time sealing the long water pump bolt that doubles as the power steering adjusting bolt on my fresh 318.

Drained the cooling system, pulled out the bolt, wire-wheeled clean the threads, blasted some brake cleaned in the hole to clean the block threads, let it dry for a few hours. Gooped the bolt threads with some permatex non-hardening sealer, re-installed it. Let it set overnight.

Re-filled in the morning, started it up, and......drip....drip...

This thing is killing me...any suggestions?