Milky oil in upper leg leg by bellows

[Kootney]

I drained my oil out of my leg and noticed a small amount of milky oil towards the end. I then pulled the leg to to change the water pump and more milky gear oil poured out. As I continued to pull the rest off a flood of milky oil cane out. What’s the best way to find the leak? Seem like it is up by the bellows.

 

[tpenfield]

:welcome: . . . as I see this is your first post.

Sorry to hear about your leg. . . . what brand/model outdrive are you talking about?

Sounds like a pressure test is in order.

 

[Chris1956]

Mercruiser? If so, the yoke seal has failed.

Sometimes the yoke seal carves a groove in the yoke. If I remember correctly, I needed to replace the yoke and seal.

A good time to replace the U joints also.

 

[Kootney]

Sorry about that, I tried to post photos but they don’t seem to be showing up. It is a Merceuiser alpha one gen 2.

 

[Kootney]

ENG: OF430405
DRV: OF457385
TRN: OF545441

Thank you for the all the help

 

[Kootney]

I forgot to mention that I noticed my lower exhaust bellow let go from the leg When I pulled the boat out of the water. Not sure if that could have been a cause of this

 

[JASinIL2006]

Exhaust bellows being torn/absent won't cause milky oil.

 

[Alumarine]

Looks like you have oil leaking out of the yoke seal as Chris said as well as water getting in probably through the u-joint bellows.

 

[Kootney]

Thank you. I’m going to replace what I can while I have it apart. Thanks for all the help

 

[Grub54891]

Thank you. I’m going to replace what I can while I have it apart. Thanks for all the help

Yeah, replace all of the bellows, gimble bearing, trim senders, and lower shift cable. Then the only reason to go back in there is for annual maintainance.