Mariner 5hp blown seal?

A

AZVIKE

Recruit
Joined
Apr 20, 2006
Messages
4
This is a '95 5hp Mariner with very low hours. Took it out this weekend and it ran and idled fine the first 2 days. Third day, it wouldn't idle, and was difficult to restart. We we pulled out of lake, I noticed there was copious amounts of what appeared to be white lithium grease on the shaft housing and in front of the lower unit. <br /><br />Any ideas?
 
F

fastwater

Seaman Apprentice
Joined
Mar 26, 2006
Messages
36
Re: Mariner 5hp blown seal?

Does it have a gear oil smell,gear oil mixed with water will look like lithium grease,but the lithium don't smell like the gear lube.
 
A

AZVIKE

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Joined
Apr 20, 2006
Messages
4
Re: Mariner 5hp blown seal?

Thanks. I assume you're right about it being gear oil. I don't know about the smell, but there wouldn't be any reason I can think of for their to be be that much grease.<br />Suppose I'm looking at a lower unit rebuild?
 
A

AZVIKE

Recruit
Joined
Apr 20, 2006
Messages
4
Re: Mariner 5hp blown seal?

Definitely gear oil. Also have gear oil pooling in the lower cowling under the carb. Why would that be?
 
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Kevin W

Petty Officer 1st Class
Joined
Apr 18, 2006
Messages
256
Re: Mariner 5hp blown seal?

my 70hp had major mixture issues and it was dumping gas and oil in the lower end.<br />it looked like a white greasy slop.<br />it was not lower end oil.<br />the gas evaporated ans the premix oil was left which mixed with the water to form this greasy slop.<br />it would be a very good idea to change the lower end oil just in case but i would bet its premix.<br />If you get it running right it will dissapear.
 
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Kevin W

Petty Officer 1st Class
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Apr 18, 2006
Messages
256
Re: Mariner 5hp blown seal?

i should have previewed my post.<br />it is not actually dumping it in the lower end.<br />its coming out the propeller and around it.
 
A

AZVIKE

Recruit
Joined
Apr 20, 2006
Messages
4
Re: Mariner 5hp blown seal?

Drained the gear oil. No evidence of water, so you might be right.
 
TOHATSU GURU

TOHATSU GURU

Admiral
Joined
Jul 22, 2004
Messages
6,164
Re: Mariner 5hp blown seal?

If it's white it is almost a given that it is gear oil. Unburned fuel/oil is black.
 
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