Anti-siphon valves and electric fuel valves

Gunn

Well-Known Member
TECHNICAL Contributor
Oct 4, 2006
2,335
Potomac River - MD
Boat Info
2003 280DA and 1995 Sea Ray 175
Engines
Twin 4.3l and 3.0l, all w/ AlphaI GenII drives
A long time ago, fellow forum member Stray Cat wrote a post about this little gem, the Parker electric fuel valve that exists on many Sea Ray boats (http://clubsearay.com/showthread.php/23308-Parker-Skinner-Fuel-Solenoid-Manual-Overide, picture below).

The 3 that are in my 280DA, while they all seem to work, are incredibly rusty and in otherwise terrible shape. I went looking to replace them and had a hard time finding them. Eventually I found them on Ebay for a little over $100.00 for one. I wondered why they were so hard to find. I thought that maybe they are no longer used (my boat is a 2003), and maybe there is something simpler and better out there.

So I wrote Mercury Marine and they got back to me the same day with a phone call. The person said that they are no longer used...now they use the standard mechanical valve; the traditional anti-siphon valve that are readily available everywhere.

Is this true? Or is it that Sea Ray does something on their own, other than what Mercury recommends? What do you guys with newer boats have, say > 2008?

If I can find something simpler, I'd like to get rid of them. As you may recall, I've had issues over the years with vapor lock, and these, having what looks to be a 1/4" NPT inlet/outlet are a restriction to my 1/2" hose that I'd rather do without, if I can. Not to mention they look so bad on my boat, they shouldn't be working!



BoatPictures015.jpg
 
I have a 2008 and it has the same valve.
i can readily find plenty of valves, but so far none with the manual bypass built in.
 
Expensive little things.

Now I wonder....WHY is it that it seems Sea Ray is the only boat manufacturer to use this? Even the EBay ad above lists it as a Sea Ray OEM item with Sea Ray part number.
 
Did you ever figure out if this was a SeaRay preference or not?? Mine just went bad and i am thinking about by-passing it for the weekend. the partnumber on mine is V5C72120 and has the wires directly connected to the valve body not the connector.
 
Hello Patrick,

No I never did anything more after this post. (Knock on wood) Mine are still working. Let us know what you end up doing as a replacement for your bad one.

Btw, how did you know it was bad? No fuel flow...?

Tom
 
MX 6.2L MPI NOT RUNNING Trying to turn over the engine and engine won’t fire up. Verified spark. Replaced fuel filter, valve, and fuel pump relay. When I kick on the ignition (stand by) should the fuel pump be running or only when the engine is cranking? The relay turns on for a few secs then immediately clicks again. It’s like the pump is not running. When we pour some fuel in the carb it starts til what we had in there is gone
 
MX 6.2L MPI NOT RUNNING Trying to turn over the engine and engine won’t fire up. Verified spark. Replaced fuel filter, valve, and fuel pump relay. When I kick on the ignition (stand by) should the fuel pump be running or only when the engine is cranking? The relay turns on for a few secs then immediately clicks again. It’s like the pump is not running. When we pour some fuel in the carb it starts til what we had in there is gone

You may want to start a new thread for your issue.

The fuel pump runs for a few seconds to build pressure, then shuts off. It should start again once the engine is cranking.

You should check for spark like you did, also make sure its at the plugs, not just the coil, and test your fuel pressure if it isn't starting.
 
No
The antisiphon is mounted on the top of the fuel tank where the fuel line attaches.
They often just look like an elbow
 

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