alpha 1 leaking

[miss sandy]

O.k. I bought my first I/O 1988 3.0 with alpha 1 outdrive and change the outdrive gear oil and noticed it leaking from a small hole I think it's the pee hole Which is the only hole I saw stern side leading edge on bottom I,m I right? it stoped shortly after with not a hole lot coming out so I'm thinking it's a seal up higher rather than lower any thoughts to what this might be.also a link on how to fix would be great.

 

[Bondo]

Re: alpha 1 leaking

Ayuh,... That's just a drainage hole for the little cavity behind, 'n above it....
It could be Any of the seals, besides the propshaft seals, as pretty much All of 'em are Above that area....

Have you done anything else to the drive,..??
Say a new Impeller,..??
If so, did you put the little quad-ring in-place,..??
Did it Stay in-place,..??

If Not,...
Get a waterpump kit, 'n tear it down...
You can look for oil trails while it's apart, 'n you might find Where it's leaking from...

 

[Don S]

Re: alpha 1 leaking

Before you take it apart, remove the drive from the boat, drain the gear lube and pressure check the drive. A spray bottle with soapy water will blow bubbles at the leak.

 

[miss sandy]

Re: alpha 1 leaking

The whole drive or can I take the lower unit off first also is there a link on how too do the water pump install?
could it be just the prop seal?

 

[ziggy]

Re: alpha 1 leaking

you pressure test with the drive complete.

you can test them separately, but ya gotta plug the oil passage somehow when you do it that way.

look at #8 from here for some info on pressure testing... http://forums.iboats.com/showthread.php?t=288430

best place to learn how to work on your drive is the mercruiser service manual. you would want #6 for alpha1 drives.. http://www.boatfix.com/merc/Servmanl/srvcovr.pdf