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 When it rains, it poors. Oil from lower unit
#4064153
10/20/09 12:49 AM
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Joined: Mar 2003
Posts: 421
Creed
OP
Angler
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OP
Angler
Joined: Mar 2003
Posts: 421 |
I just got the water jacket leak fixed, with three broken bolts, only to find oil coming out of my lower unit.
It is a 1991 Johnson 115. I pulled prop hoping for fishing string behind it, and found nothing. It seems like the oil is coming out from inside the housing. The seal closest to the prop does not appear to be leaking.
What is my next place to check?
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Re: When it rains, it poors. Oil from lower unit
[Re: Creed]
#4064188
10/20/09 12:59 AM
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Joined: Mar 2004
Posts: 1,960
sbump26
Extreme Angler
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Extreme Angler
Joined: Mar 2004
Posts: 1,960 |
Might be unburnt fuel and oil. Coming from the center of the prop where the exhaust comes out? Smell it, if it smells like exhaust thats your answer.
Put the plug in.
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Re: When it rains, it poors. Oil from lower unit
[Re: Creed]
#4064196
10/20/09 01:01 AM
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Joined: Jan 2004
Posts: 2,447
rb7764
Extreme Angler
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Extreme Angler
Joined: Jan 2004
Posts: 2,447 |
Creed - the best thing to do is drop the LU and have it pressure tested. Hopefully, the case is not cracked and it is just a seal. It could also just be oil leaking down from the power head through the exhaust tower. Are you sure it is LU oil?
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Re: When it rains, it poors. Oil from lower unit
[Re: rb7764]
#4064221
10/20/09 01:05 AM
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Joined: Mar 2003
Posts: 421
Creed
OP
Angler
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OP
Angler
Joined: Mar 2003
Posts: 421 |
I am sure it is lower unit oil. The oil is black.
Now I thing about it, I changed the oil a couple of months ago. Maybe the oil screws are not sealing correctly, causing water to enter making the oil displace? I will change the oil this week, again. I will look for water and replace the seals on the screws.
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Re: When it rains, it poors. Oil from lower unit
[Re: Creed]
#4064489
10/20/09 02:09 AM
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Joined: Aug 2007
Posts: 4,591
stick steering
TFF Team Angler
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TFF Team Angler
Joined: Aug 2007
Posts: 4,591 |
so is gas mixed with carbon deposits from the exhaust housing which tend to make its way out the gearcase exhaust,is the lower unit oil milky looking, if oil makes it way out water has to make its way in, do as rb says test it before you start taking things apart
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Re: When it rains, it poors. Oil from lower unit
[Re: stick steering]
#4065031
10/20/09 10:06 AM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Loosen the bottom drain plug on the lower and see what oil looks like. Should`nt be black in 2 months. I would bet on the leak being unburnt fuel-oil.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: When it rains, it poors. Oil from lower unit
[Re: gary purdy]
#4066245
10/20/09 06:47 PM
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Joined: Mar 2003
Posts: 421
Creed
OP
Angler
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OP
Angler
Joined: Mar 2003
Posts: 421 |
Ok. I will take a look to see if I have water in the lower unit. I will report back.
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Re: When it rains, it poors. Oil from lower unit
[Re: Creed]
#4067205
10/20/09 11:52 PM
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Joined: Mar 2003
Posts: 421
Creed
OP
Angler
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OP
Angler
Joined: Mar 2003
Posts: 421 |
From what I can tell. I do not have water in the lower unit. The oil seems the same color as it went in.
Thanks for all of your help.
Chris
Last edited by Creed; 10/21/09 01:56 AM.
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