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boeing1 28-02-2010 09:21

Wiring Schematic for Fuel Gauge on Nonsuch 30
I am going some work on a friends, nonsuch 30, I need a wiring schematic or print for the fuel gage, any help would be helpful,

GordMay 28-02-2010 11:16

1 Attachment(s)
Typical Engine Gauge Wiring Diagrams:
Engine Gauge Wiring Diagram - See also Gauge Testing Diagrams Cruisers & Sailing Photo Gallery

Testing Engine Gauges:
1 ➥ Testing Engine Gauges - See also Wiring Diagram & Sender Resistances Cruisers & Sailing Photo Gallery
2 ➥ Testing Engine Gauges (2) - See also Wiring Diagram & Testing Instructions Cruisers & Sailing Photo Gallery

If you know the specific engine, thereís several wiring diagrams (Yanmar, Perkins, Universal, etc) in my Photo Gallery:
Here ➥ GordMay's Images - Cruisers & Sailing Photo Gallery

Fuel Gauge Sender wire may be Pink.

boeing1 28-02-2010 20:30

fuel tank gage wiring
Thanks for the info,
the schematic does not look like how the boat is wired.
The engine is a westerbleke 27, The tank sender unit has three wires on it, and I think the gage has been replaced.
any ideas,

James S 28-02-2010 22:54

Welcome to the forum boeing1

GordMay 01-03-2010 05:41

I donít recall ever seeing a 3-wire sender.
An isolated 2-wire sender is wired per my schematic, with the addition of an insulated return/ground wire.

You might try searching or asking at the Nonsuch Yacht Owners Discussion List:

S/V Antares 01-03-2010 06:04

Can we see a picture of the top of the sender? any name or numbers on the sender?

3 wires suggests an aftermarket unit with a Pos. Neg. and switch for low level or water in the fuel. Do you have panel lights for low fuel or "Water in fuel?)

Sailmonkey 01-03-2010 08:24

As always, please remember that even in a series of boats, seldom are two built alike. "new" production boats differ from this rule slightly though.

boeing1 02-03-2010 06:30

fuel gage
Yes, the there wire hookup from the sender had me wondering, good suggestion that possible after market unit. I will not be on the boat till next week will keep you informed, thanks again for the info so far..

GordMay 02-03-2010 07:02

Hereís a 3-Wire Fuel Level Sender, with Sense (Send), Pos. and Neg wires.
Livorsi Model # GSFLC

Apparently not as uncommon as I would have thought.

boeing1 02-03-2010 08:14

3 wire fuel sender
thats looks like what is installed,
Thanks again, will let you know the results of my findings

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