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Old 26 September 2010, 14:58   #1
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Smart craft fuel display

Another question,
does anyone know how a fuel sender connects into the smartcraft guages? Wire colours etc? Googled it but no joy. Trying to find a schematic, the display shows fuel but can't see where to connect it in?
ta.
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Old 26 September 2010, 15:20   #2
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Memory's a bit faded from when I did my build, should have the wiring instructions at home somewhere, will dig it out and attempt to scan it
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Old 26 September 2010, 15:36   #3
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you should have a loom coming out of the engine, there should be a blue wire and a pink wire, one goes to the oil tank and the other is for the fuel tank, I think blue is for the oil tank so pink would be fuel but not 100% on that bit.
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Old 26 September 2010, 15:49   #4
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Cant find any info here but it's starting to come back to me...

Merc do a smartcraft "boat harness" that connects to your fuel & oil tanks and your paddle wheel speedo. I think theres a 4 pin and a 6 pin plug on the motor that this plugs into. Then the info is sent up the can-bus with the rest of the engine data to the gauges.

Part number for the boat harness: 84-859743T

Google the part number and you'll get more info
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Old 27 September 2010, 01:31   #5
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Thanks for that, just need to find the fuel sender as I have the oil tank and the paddle wheel, and go from there.
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Old 27 September 2010, 03:03   #6
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Quote:
Originally Posted by Jizm View Post
Another question,
does anyone know how a fuel sender connects into the smartcraft guages? Wire colours etc? Googled it but no joy. Trying to find a schematic, the display shows fuel but can't see where to connect it in?
ta.
Jiz
In the fuel/paddle/oil harness there's a pink wire with a black line on marked 'fuel 1' which is for the main tank, for twin tanks there's pale blue wire again with a black stripe marked 'fuel 2/other'.
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Old 27 September 2010, 07:45   #7
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Quote:
Originally Posted by Kernow View Post
In the fuel/paddle/oil harness there's a pink wire with a black line on marked 'fuel 1' which is for the main tank, for twin tanks there's pale blue wire again with a black stripe marked 'fuel 2/other'.
Ah, thanks that concurs with the link from Martini! Standard analogue signal from the sender I take it?
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Old 27 September 2010, 10:11   #8
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It is analogue but I did have to specify I was using smartcraft to Wema when I got my senders made. Think the resistance works the other way round to other gauges?
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Old 27 September 2010, 10:27   #9
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Yep, Smartcraft uses US resistance senders.
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Old 27 September 2010, 10:31   #10
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normal is about 30-250ish ohms so whats a US one?
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