Mystery wire number 743 - on '98 270 SDA

N

nigel

New Member
Jan 24, 2007
68
South Coast, UK
Boat Info
1998 270 Sundancer
Engines
Twin 4.3Ls on Alpha 1s
Hi,

Anyone know what green wire "743" is on a 1998 270 Sundancer?? - it has a ring connector on the end and has come loose from somewhere near the fuel filler or fresh water tank. The other end goes into the rest of the wiring loom...

I've some wiring diagrams for the boat but can't find this one on any of them.

Many thanks for any info!


Nigel.
 
Nigel,

I just had to look into the bildge at all of the wiring and thought man I need a wiring diagram. I googled it and found all of the wiring on the Searay website in the owners manual for my 1998 270. Also, I found the parts guy at my local Marine Max to be extremely helpful in tracking down mystery parts and repair tips. Good luck and post some pics of your rig if you can!
 
What color is the wire that can sometimes give you an idea. The ABYC has color codes for different common systems on a boat. Purple is ignition Pink is fuel etc.
 
Hi,

Its green.. I have the wiring diagrams downloaded from the Sea Ray site but can't find this one on any of them..

One thing I think it may be is a ground for the filler - but its plastic on my boat. Anyone know anything about grounding tanks/fillers and the static implications??

Cheers for now - and a Happy New Year to everyone!!

Nigel.
 
Is the wire long? There is normaly a green wire that will hook up to the main fuel filling hose between the fuel tank and the fuel filler neck assembly, It hooks up to one of the bolts that holds the fuel filler neck to the side of the boat.
If it is this wire, It's used for preventing static electricity while filling up the boat with fuel.:wink:

Here is a list of standard Boat Wiring color Codes that may help someone someday.:thumbsup: Good luck with it, I hope this helps you out.


Blk -Grounds-General
Blk/Brn -Pump Grounds
Blk/Red -Voltmeter Grounds
Blk/Org -Isolated Accessory Grounds
Blk/Yel -ignition stop
Blk/Grn -Water Level Sender Ground
Blk/Blu -Lighting Grounds
Blk/Gry -Nav Light Grounds
Blk/Wht -Battery Parallel Solenoid
Brown -Pumps-General, Bilge or Sump (Manually Switched)(Also alternator starter to Ign.)
Brn/Red -Pumps, Bilge or Sump
Brn/Org -Power feed to Auto Bilge Switches-Pumps, Fuel/Oil Tranfer or Priming
Brn/Yel -Baitwell or Aerator
Brn/Grn -Fresh Water Pump/Water Maker
Brn/Blu -Head Pump
Brn/Vio -Washdown Pump
Brn/Wht -trim pos sender
Red - Battery Feeds Unprotected
Red/Vio -Misc. Accy. Main Feed Protected (fused) from batt to trim panel.
Pink -Fuel Sender
Org/Blk -Audio System Feed
Org/Brn -Electric Head-Sanitation System
Org/Red -Wiper Port
Orange -Accessories common feed- Dist Panel to Acc switch-Anode Electrode-Mercathode
Org/Yel -Diesel Pre-heat
Org/Grn -Wiper Stbd
Org/Blu -Communications Equipment
Org/Vio -Navigation Equipment
Org/Wht -Wiper Center
Yel/Blk -Choke - Neutral saftey trans mounted
Yel/Red -Start Solenoid(starting circut), Neutral Safety
Yel/Org -Powered Ventilation, Fans
Yellow -Bilge Blowers -(also alternator DC output)
Yel/Wht -Rudder Angle Sender
Grn/Red -Stop Solenoid/Kill Switch
Grn/Yel -AC Grounding
Green -Bonding
Grn/Wht -Engine Trim in and or tilt down
Grn/Org -Engine Independent Trim down
Blu/Blk -Cabin Lights
Blu/Brn -Oil Temp Send
Blu/Red -Cabin or Cockpit Lights Port
Blu/Org -Engine Independent Tilt Up
Blu/Yel -Lighting Circuits to Remote Send
Blu/Grn -Cabin or Cockpit Lights Stbd
Blu -Instrument & General Lighting
Blu/Vio -Courtesy, Boarding Lighting
Blu/Wht -Engine Trim Outand/or Tilt Up
Light Blue -Oil Pressure
Vio/Red -Eng. or Generator B+ from Breaker
Vio/Yel -I/O Trim Up (ballast bypass)
Vio/Grn -I/O Trim Down
Vio -12v Ignition-Generator or Engine
Vio/Wht -Trim "Trailer" switch
Gry/Blk -Mast Light
Gry/Red -Spotlight Remote
Gry/Org -Docking Lights
Gry/Grn -Strobe or Beacon
Gry/Blu -Spreader/Flood Lights
Gry/Vio -Windlass/Winch
Gray -Navigation (running) Lights, Tach. Send
Gry/Wht -Anchor Light
Wht/Brn -Temp. Alarm or Indicator
Wht/Red -Fuel Alarm or Indicator -((Ignition module to Dist.)Mercury Thunderbolt Ignition)
Wht/Org -Fire Alarm or Indicator
Wht/Yel -Air Flow Alarm or Indicator
Wht/Grn -Water Press/Flow Alarm or Indicator - ((Ignition module to Dist.)Mercury Thunderbolt Ignition)
Wht/Blu -Oil Press Alarm or Indicator
Wht/Vio -Voltage Alarm or Indicator
White -General Alarm Usage, Yamaha Kill Switch
Tan - Water Temp sender
Tan/Blu -Warning system sense wire (Audio warning)
Pink -Fuel sender
__________________
 
WOW! Thanks for the list. I copied that to my reference library just in case!
 
Start off by holding the loop end of the wire and moving it around in all directions. Try to locate anything with mounting screws, electrical equipment, or motorized devices that should be grounded, but aren't. I'm not sure how long that wire is, but there can only be so many devices within the radius of its reach. Either something that was grounded is not grounded any more, or that is a ground wire for something that your boat never had. Does the loop have scuff makrs on it? If it was used before, you should see some marks or shiny spots on the loop. If everything within its reach is grounded, I wouldn't worry about it.

Shoot Sea Ray Cust Service an email. You might get luck and get a reply.
 
Last edited:
Great stuff Boat Tech - Many thanks for that...

My fuel hose has a sharp kink in it above the water tank and I also have a suspicion the fuel filler seal is leaking rain in so I'll take the lot apart next week and re-build/seal/connect it... The ring connector has marks on it so was connected somewhere at some point - and is about the right length to reach up to the filler.

Cheers,

Nigel.
 
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