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502 EFI Fuel issue what is this?

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Old 06-17-2012, 08:09 PM
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Default 502 EFI Fuel issue what is this?

What is this part called? I'm new to the EFI and developed a fuel leak on the way in today, I assume a gasket or is there a issue that could have went wrong inside to cause a leak?

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Old 06-17-2012, 08:18 PM
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That is your vapor separator tank, here is a breakdoown of the parts:

http://www.mercruiserparts.com/Show_...SEPARATOR+TANK
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Old 06-17-2012, 08:22 PM
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Originally Posted by Ted G
That is your vapor separator tank, here is a breakdoown of the parts:

http://www.mercruiserparts.com/Show_...SEPARATOR+TANK
Thanks I was definitely barking up the wrong tree
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Old 06-17-2012, 08:55 PM
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Where is it leaking from?
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Old 06-18-2012, 04:28 AM
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Right in the backbi assume a gasket
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Old 06-18-2012, 07:53 AM
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Yup, could be the cover O-ring, they get pinched once in a while.
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Old 06-18-2012, 08:15 AM
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Hoping thats all, what happens when i take apart is it pressurized? is there a pressure relief somewhere? or just pull apart have some rags ready?

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Old 06-18-2012, 08:55 AM
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Just get rags ready. It is not pressurized but is full of fuel. Word of advice buy more than one of the o-rings as they don't hold shape very well. Ask me how I know.
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Old 06-18-2012, 04:11 PM
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So looks like I have to buy a kit for 90 bucks go figure, I wonder if its just the top o ring or if there is a issue that caused this
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Old 06-19-2012, 12:27 PM
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I just found a part number for the top seal ring sold by itself, 803831. About $8.75
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