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502 EFI Fuel issue what is this?

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Old 06-19-2012 | 01:02 PM
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Originally Posted by Mbam
I just found a part number for the top seal ring sold by itself, 803831. About $8.75
Way to go Marc, good deal.
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Old 06-19-2012 | 02:01 PM
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Originally Posted by Mbam
I just found a part number for the top seal ring sold by itself, 803831. About $8.75
thanks! already ordered the kit dammnot so sure I'm not gonna need more issues from what I hear maybe something is causing this float or something, gonna take it to someone today this sucks
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Old 06-19-2012 | 06:28 PM
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Originally Posted by Mbam
I just found a part number for the top seal ring sold by itself, 803831. About $8.75
I assume you work at BAM and this is verified? there's no pic and I would hate to screw this up
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Old 06-19-2012 | 07:47 PM
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Marc owns BAM and if he says it, it's good. No one is more knowledgeable on Merc Parts.
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Old 06-19-2012 | 07:56 PM
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Originally Posted by Ted G
Marc owns BAM and if he says it, it's good. No one is more knowledgeable on Merc Parts.
Thanks for the clarification, i just wanted to make sure
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Old 06-19-2012 | 08:13 PM
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Dont stop there. Get your wallet ready. Next it will be the needle and seat going south at wot dumping overflow in number 8 been there. The top oring grows like a slinky once the top is off. Do a rebuild, you will boat more this summer.
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Old 06-19-2012 | 08:15 PM
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I have had pleanty of problems with that when I had my Top Gun , there is a diaphragm inside it that goes bad and pours fuel out of the vent through a tube that is connected to the #5 intake port (if i rember right) , that is a safty if it overflows it goes into the intake insted of starting a fire kinda like the vent on a marine fuel pump.I think its that vent you have open on the top, Best investment you can make is to trash the VST tanks and update with some Cool fuel pumps off a later 502 MPI , The VST tank is a small reservoir of fuel to supply pump and keep it cool there is a float , needle and seat and some small parts , not real reliable , John
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Old 06-19-2012 | 09:07 PM
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I don't like where this is going
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Old 06-21-2012 | 01:21 PM
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Originally Posted by Mbam
I just found a part number for the top seal ring sold by itself, 803831. About $8.75
Ordered Overnighted and wrong part guess no boat this week
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Old 06-21-2012 | 01:46 PM
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Did you figure out what was leaking? You can get the top oring back in if you cool it and work it with some grease back into the cap. If it is the diaphram or needle and seat you got problems. PM me a number and I will give you a ring Chuck.
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