Parker Skinner Fuel Solenoids REALLY HOT!

[Daves270]

I have a 2005 320 Sundancer with 2 6.2 Horizons. A few days ago after about 30 minutes of cruising at 4000 RPMs the port engine stalled on me and would not start. Had to limp home on 1 engine.
The next day it started and ran fine for a while while at the slip, then stalled and wouldn't start again.
Changed the fuel filter, but same result.

Did some searching online and got scared to death over the cool fuel Gen III issues, as I found I have one of these. However, the port engine now stalls almost immediately after starting, before heating up. I then noticed the fuel pump was not always turning on with the first click of the ignition rocker switch. After inspecting the fuel pump relay I noticed one of the pins was black. Compared this to the fuel relay on the starboard engine and found this one only slightly discolored. Swapped the two relays to see if the problem followed the relay, but now both engines start and run. Now I was thinking / hoping that maybe it was just a dirty connection.

Not totally convinced of this the next day I started the port engine and got in the engine compartment to check around and found the wires to the fuel relay were hot. Followed the wires, which felt like they had been overheated a number of times, down to the fuel pump, which was not hot, but the wires were still hot. The hot wires continued up to the top of the port side fuel tank to the fuel solenoid, which was REALLY HOT! Now I thought I may have found the culprit. But, for comparison, after running the starboard engine for only a few minutes the fuel solenoid on the starboard fuel tank was also really hot. Using an infrared thermometer each fuel solenoid was over 150 degrees! Only after a few minutes of operation.

Information on these Parker Skinner Fuel Solenoids, Part number 71215sn21z01f2jz05c1, is really hard to find. Apparently a custom for Sea Ray.

There is a great write up on the manual override of these valves by Stray Cat, http://clubsearay.com/showthread.php/23308-Parker-Skinner-Fuel-Solenoid-Manual-Overide
But, scarce info on operation, like operating temp.
Does anyone have any info or experience with these?



I also noticed some posts of these solenoids have slightly different part numbers, probably having to do with the year, but also different PSI ratings. Mine is 10 psi, but Stray Cat's is 3 PSI. And another post had 2 PSI.

Any info or suggestions greatly appreciated.

Thanks

 

[Daves270]

Here is an update on this.

My problem turned out to be the a relay, 865202T, controlling the fuel valve/solenoid. Replaced the relay and problem is gone.

I also contacted Parker Skinner and a tech called me back with info about the solenoid. He indicated these temperatures on these solenoids is normal.

Seems kind of strange to have a part operating at over 150 degrees mounted on top of a 100 gal gas tank. There are 2 of these setup this way in my boat.

 

[Seapig]

I eliminated mine on my 2005 260 and replaced it with an ordinary anti-siphon valve.

I can’t see how a bum relay could cause over-current. Were you given an ohms spec for the solenoid? My suspicion is the solenoid coil is shorted (lower than spec ohms) causing the excessive current draw and heating of the connectors and wiring at the relay.

Maybe measure and compare resistances of both solenoids ? Do it when they are both cold as temperature affects resistance.

 

[Bt Doctur]

anti-syphons will replace the solenoid valves

 

[techmitch]

anti-syphons will replace the solenoid valves