904 Transmission Leak

Clean it again when it is safely in the air.

The leak may be slow and not become noticeable for a few days.

So clean it and let air dry. Then with a new, dry natural animal hair paint brush, dip it in talcum powder and coat any possible offending areas. Apply the powder liberally. That will 'clot' at the leak source first, but be ready to check it as often as possible.