M42 Coolant Leak - Aluminum connection gash

[HorayshE30]

How do I keep debris/mess from falling into the hole if I was to cut it off and tap a new barb in? If something gets in there, how do I clean it out?...

[HorayshE30]

Thanks for the replys. I've sanded it down to a point where pits were smaller. Now going to JB it to fill the small pits left and then sand down to get as much metal surface as possible. Then hose clamp...

[HorayshE30]

I had a coolant leak so I took everything apart to find out where. Turns out I have a gash in the aluminum where a hose connects. Any idea on how to fix this without dismantling the engine?...