Alpha one leaking drive oil

[Ocean Airbrush]

I have a 93 4.3L in my grady and it has a drive oil resevoir. Whenever I park the boat it seems to slowly leak drive oil from just behind the prop hub. I have been told this is a normal issue for these models. any suggestions or insights?

 

[Rocky_Road]

Re: Alpha one leaking drive oil

You might have picked up some fishing line...and cut your prop shaft seal.

I would pull the prop and take a look...and then fix the leak!

Happy boating!

 

[Gary H NC]

Re: Alpha one leaking drive oil

I agree,It's not really normal to drip gear oil.The prop shaft seal is probably leaking.

 

[Bondo]

Re: Alpha one leaking drive oil

I have been told this is a normal issue for these models.

Nope,... It's not normal for Any gearcase to Leak... Especially 1 Under water...
Getting it checked out,+ fixed should be priority #1

 

[cr2k]

Re: Alpha one leaking drive oil

It also could be leaking form the vertical drive seals into the housing and going out the hub via the exhaust cavity.

If you cant pin point the leak you will need a drive off pressure and vacuum test. both because some seals seal oil in and some seal water out.

 

[sickwilly]

Re: Alpha one leaking drive oil

both because some seals seal oil in and some seal water out.

Bingo, duh! Now I understand why both are important. Thanks!