After purging air from lines. Noticed a diesel leek from

[BearsDad]

After purging the air from fuel line. The generator started and ran great. Frosty air conditioning. After running for a few minutes I returned to shut it down and noticed a new fuel leek below the injectors.
I am asking about this because I didn’t touch this area, and their is quite a bit of diesel. I cleaned the area and tried tightening the nuts on the manifold. Nothing was loose. It appears the fuel is Leaking directly from the front right corner nut. Thank you for any feedback.