Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Question on a 115 merc, lower unit

Posted by moguls2go on 09/19/11 - 8:29 AM
#1

Hi All,

I have a 1992 115hp Merc on a 17' Outrage.

After being raised and flushed with earmuffs, I noticed water draining from the space in front of the prop (toward the bow in relation to the prop)... Having recently had a new skeg welded on due to an unfortunate meeting with a rock, I'm paying more attention to the lower unit and, because I never paid a ton of attention to where water was draining, I'm wondering if this is normal?

I'm concerned that, when the shop welded a new skeg, the heat from the weld damaged or destroyed the seals and I have a lower unit that's full of sea water. Can anyone tell me if water coming from in front of the prop once the motor has been raised is normal?

Thanks,
Max

Posted by CES on 09/19/11 - 8:36 AM
#2

Are you talking about the gap between the prop and lower unit?? If so, the answer is yes...that is normal. Water and exhaust exit through the propeller. The prop is not sealed to the lower unti so you'll have water leaking from the gap between the prop and lower unit.

Posted by Derwd24 on 09/19/11 - 9:41 AM
#3

Also, drain a little of the gear oil off (or do a complete change if it hasn't been done for a while) and inspect the color of the oil. Water intrusion usually turns the lube a whitish/creamy color.

Posted by moguls2go on 09/19/11 - 10:27 AM
#4

Cliff- yes that's exactly where the water is coming from. Thanks for the reply.

Posted by CES on 09/19/11 - 10:32 AM
#5

moguls2go wrote:
Cliff- yes that's exactly where the water is coming from. Thanks for the reply.


You're welcome.

As Dave mentions above, if you're worried about the heat generated with the skeg repair.....do as he states above to make sure your lower unit oil isn't milked.