PISTONESAL
Petty Officer 2nd Class
- Joined
- Feb 11, 2008
- Messages
- 145
Help please!! I have a 2000 Mariner/Mercury 75HP outboard that I got May 2016 and has been awesome with no issues. Now, I saw an oil leak on my driveway. I had a look at the source of the oil leak and it appeared to come from a small 1/8" port on the underside of the fin towards the transom. I can't make it out where it is coming down from inside engine.. What is this little hole for? It is to the above/right of the oil level screw in the lower unit. Anybody have any suggestions please? I tried to upload a picture but it would not work don't know why.
I read this online
"The air diverter box that is attached to the front of the carbs has a small bleeder hose that is attached to the bottom of the engine block. This acts as a drain for fuel that has been dumped out of the front of the carbs when you tilted the engine. That fuel runs down the inside of the exhaust cavity and can come out the weep hole that you see on the lower unit. That is how the fuel/oil mix shows up in that location. P.S. it can also run downt the skeg and look like a lower unit oil leak."
Is this true? Please advise. I would really appreciate it. Thanks
I read this online
"The air diverter box that is attached to the front of the carbs has a small bleeder hose that is attached to the bottom of the engine block. This acts as a drain for fuel that has been dumped out of the front of the carbs when you tilted the engine. That fuel runs down the inside of the exhaust cavity and can come out the weep hole that you see on the lower unit. That is how the fuel/oil mix shows up in that location. P.S. it can also run downt the skeg and look like a lower unit oil leak."
Is this true? Please advise. I would really appreciate it. Thanks