Evinrude OceanPro 175 mid-90's leaking fluid

gam101

Petty Officer 3rd Class
Joined
Jun 3, 2012
Messages
79
Greetings folks! (once again, newbie alert)

A brief history here;

On this used boat that I bought a month ago, I noticed a week later there was a stain on the ground, and it turned out the hydraulic fluid was leaking. So I refilled the hydraulic fluid with car ATF (image below), and bled the air out from reservoir (had someone to help me with that). But what I originally thought was the hydraulic fluid leaking from the reservoir cap, turned out to be a bigger leak.

I now think the fluid is leaking from the place where the reservoir is bolted into the trim motor (please see pic with red arrows).

My questions are;

1) Is my assessment of the possible leak correct?

2) How can I fix the leak? (is it a matter of unscrewing the 3 bolts attaching the reservoir & replacing the gasket or sealent?)

Appreciate all the help, in advance.
 

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jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
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I usually find that the plastic housing is warped but yes, there is an oring type seal or less common is a sealed mated surface there.
 

gam101

Petty Officer 3rd Class
Joined
Jun 3, 2012
Messages
79
I usually find that the plastic housing is warped but yes, there is an oring type seal or less common is a sealed mated surface there.

Appreciate the help. So, just to confirm, I should plan to unscrew the 3 bolts keeping the plastic reservoir in place, and then either replace the gasket or apply new sealant?

Thank you, again.
 

jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
4,275
Yes, more likely would be a new reservoir. Once they leak they seldom seal for very long.
 

gam101

Petty Officer 3rd Class
Joined
Jun 3, 2012
Messages
79
Yes, more likely would be a new reservoir. Once they leak they seldom seal for very long.


Thank you. You've been exteremly helpful.

Last question, do you think I can remove the reservoir without having to remove the entire motor? The reason I am asking is because 2 of the 3 screw bolts are behind the plastic reservoir, kinda hard to get to. And this will be my first rodeo.

Appreciate it, again.
 

jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
4,275
Thank you. You've been exteremly helpful.

Last question, do you think I can remove the reservoir without having to remove the entire motor? The reason I am asking is because 2 of the 3 screw bolts are behind the plastic reservoir, kinda hard to get to. And this will be my first rodeo.

Appreciate it, again.

I cant remember on those, been awhile.
 
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