Reply To: johnson fd-11 1957 18 hp

[Mumbles]

That looks more like gear oil mixed with water than unburned fuel mix coming out of the drain holes.  The shift rod O ring is a prime candidate for leaking and should be included in a seal set.

Make sure you get the correct prop shaft seal as the OD size  changed on them around this time. I think it was the ’57 FDE-11K and ’58 and later used the different seal. Some Sierra kits came with several seals in them and would cover all models.