fuel leaking in water!!

David B.

Seaman Apprentice
Joined
Aug 6, 2007
Messages
42
Hey all, I have a 1996 evinrude 130hp and everytime its idling I notice a sheen of fuel in the water. I checked the hoses and didn,t find any leaks. it looks like the fuel is coming out of the exhaust. what could be wrong to cause that?? I don,t know a lot about outboards so I probally won,t be able to fix it myself, Im mostly trying to get an idea of what the problem could be before I call a mechanic, I really don,t want to spend much on this old O.B.. I may just but a new one..... Thanks for any help at all!!!
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: fuel leaking in water!!

Is this a new outboard to you, or has it just started outputting more oil/fuel than normal? If this is new to you, 2 strokes leave a sheen on the water. That is their nature, without getting too deep into it. Quite normal. You would notice by the performance of the motor if you had a fuel leak or air leak.
 

rndn

Commander
Joined
May 20, 2007
Messages
2,323
Re: fuel leaking in water!!

As mentioned it may be normal. Check out the prices of a new 130hp and you may change your mind. The 130 is a great motor with lots of torque as I have one the same year and love it.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: fuel leaking in water!!

probably normal, they do not burn all the fuel, and oil at idle, it goes out the exhaust. by they way a 96 is a tween, 86 is a teen, 76 adult, 56 mature. there are plenty of the mature motors still going strong.
 

David B.

Seaman Apprentice
Joined
Aug 6, 2007
Messages
42
Re: fuel leaking in water!!

Thanks for the replies!!
I,ve had the O.B. for about 5 years and never noticed a sheen in the water before. but maybe it is normal, I,ve never really let it idle for long before, so I guess its possible that it always did it. I was actually worried that I could get a ticket for it if the DNR saw it.
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,338
Re: fuel leaking in water!!

David,
Don't worry about it. If DNR gave tickets for such things they would have a hay day at any of the local marinas. ;)
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,109
Re: fuel leaking in water!!

David, If the fuel pump has a hole in the diaphram, raw fuel will get into the exhaust.
 

David B.

Seaman Apprentice
Joined
Aug 6, 2007
Messages
42
Re: fuel leaking in water!!

David, If the fuel pump has a hole in the diaphram, raw fuel will get into the exhaust.
Is the fuel pump and the VRO pump the same thing? I disconected the wires on my VRO a couple years ago because the no oil alarm kept going off.
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: fuel leaking in water!!

Fuel pump is part of the VRO system.

VRO.jpg
 

David B.

Seaman Apprentice
Joined
Aug 6, 2007
Messages
42
Re: fuel leaking in water!!

Sorry about asking all these dumb questions, but is there any way I could test it to see if its the diaphram thats the problem (if there is a problem), or do I have to gamble and buy a new VRO? I don,t even have a oil tank anymore, when I disengaged the VRO wires, I removed the oil tank from the center console and put two trolling motor batteries in its place. I,ve been adding oil to my gas tank ever since
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,109
Re: fuel leaking in water!!

Dave, Pull off the pulse line on the vro and on the vapor pump, if you have one(some models have both pumps). Pump the primer bulb, and if fuel leaks out of the pulse line(s), the daighram is bad.
 

David B.

Seaman Apprentice
Joined
Aug 6, 2007
Messages
42
Re: fuel leaking in water!!

Thanks for the help!!
I looked around for anything that looked like a pulse line and couldn,t find anything, but I did run the O.B. in my back yard and put a bucket under the prop. I only ran it for a couple minutes and there was a good amount of gunk in the bucket. Does this look normal?? notice the fuel in the water and the oil caked on the sides of the bucket? some of the fuel looks spent but some of it looks fresh (the pic doesn,t show the rainbow like color on the top of the water to well).
J-pRnsjnV1zweQNe51eqB-TVTz2DCccD0300.jpg

+pqpfn2+hnDXz4sYps+-PkcD46e8pVnw0300.jpg
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: fuel leaking in water!!

You can help with the sheen on the water by using a biodegradable 100% TCW-3 synthetic oil. The engine will run cleaner, less carbon, less plug fouling. Great for the environment.
 
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