Mercruiser 5.7 2(h) - Gear Oil Leak

In this video I take apart the outdrive lower and upper parts on an Alpha One to find the source of a gear oil leak. Gear oil was coming out of the water pump inlet and I knew there had to be a seal leaking if oil is coming out there. I found two seals and I’ll replace both just in case.
I used the serial number on the outdrive to look up part numbers.

[@johnmiller4553]

THANK YOU. THINK I FOUND MY LEAK NOW. 😬 🤙🤙🤙🤙🤙🤙🤙🤙🤙🤙🤙🤙🤙

[@moccasinmarine]

Glad I could help

[@elislifestyle3600]

What was your leak?

[@davearmstrong1932]

Yup, me too. Far has no boat this season

[@richardcranium5839]

pressure and vacuum test before putting the gear oil in. those can suck if the seals dont fix it trying to find a crack.

[@moccasinmarine]

Thanks for the heads up. You’ve given me a great idea which I’ll reveal in a few months.

[@daisey000]

What would be wrong if the heat oil was leaking inside the boat?

[@moccasinmarine]

Your gear oil reservoir or lines are leaking.

[@kingriosfamily472]

Ho do you have a video how do you change that seal thanks

[@moccasinmarine]

I don’t but you can check this mechanics channel.
ruclips.net/video/TrssZeoUHTA/видео.htmlsi=o1nqsQAqMPZrmpwL

[@patrickharlow7724]

Did it work?

[@moccasinmarine]

I don’t remember. It was too long ago.

[@patrickharlow7724]

@@moccasinmarine ok, thx for the video atleast, not many others have had this issue

[@moccasinmarine]

@@patrickharlow7724 I think I ended up replacing the seal in the lower gear box. I was in a hurry to get it repaired and back to the customer.

[@chelseajohnson6919]

Do you know the part number? I’m having the same issue

[@drcoffee5588]

So it was the yellow seal below the impeller? I have the same issue. Thats the only place oil can come from and exit out the water intake holes