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Old 25 October 2006, 05:07   #1
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Fuel computers

All

I want to fit a fuel tracking system to my Ocean mainly so that I can feel a bit more confident when attempting longer trips that I have fuel left to get home.

My Garmin 176C GPS plotter has an option in its menu to display fuel flow, but I think itís just in the software from one of its bigger brothers, as there is no mention anywhere in the manual of how to connect a flow sensor etc. Iím hoping to upgrade the GPS next year anyway, but am currently thinking about one of the stand alone systems such as the Navman 2100 fuel computer. Particularly as itís a budget friendly £140. It looks a nice simple little unit, I donít want to go to the trouble of fitting one that also needs a paddle wheel sensor for speed etc.

I really just need an accurate amount of fuel used, and flow rate, then I can work out some average usage figures, and maybe predict with some more experience how much fuel Iíll need for a trip.

Does anyone have any experience of the Navman?
Or does anyone have any other suggested units in that price range?

Thanks

Nasher.
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Old 25 October 2006, 05:46   #2
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We have a sender fitted in the tank and interfaced with the Mercury SmartCraft display. Works well and gives confidence.

Couls you fit something similar?
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Old 25 October 2006, 06:56   #3
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I use the Evinrude one, but it's the same as the Navman 2100. The manual is exactly the same!
It's perfectly working on my Evinrude 250 DI. The position of the fuel flow tranducer needs attention.
http://www.navman.com/Navman/Templat...____22146.aspx
The manuel says it's only for carburated engines. Therefore I called Navman and they say it's also for Direct Injection engines.
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Old 25 October 2006, 07:32   #4
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Quote:
Originally Posted by Nasher View Post
All

.......as the Navman 2100 fuel computer. Particularly as itís a budget friendly £140. .................
Nasher.
Currently £75 here http://www.bosunslockerchandlery.co....?CategoryId=51

Guess who will be ordering one any second now............
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Old 25 October 2006, 08:38   #5
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I have the Navman 3100 running on my Suzuki - it works very well BUT the display is effected quite a bit by moisture. I admit I still don't have a cover over my console but the other instruments are fine. When the display warms up for a while it seems to be ok again though.

One of the most useful features I have found is the nice large display giving my speed readout - much easier to read than on the chartplotter.

You must be careful to have good filters fitted BEFORE the fuel transducer - they have a fine impeller inside that can block and starve the engine of fuel.

Another thing to note diuring installation - the instructions are wrong - when you connect up the gps it is the white wire that is + not the yellow - or is it the other way around??? I will have a look later - anyway if it doesn't work the way they say just use the other wire - no harm done.

One other thing to be aware of - on some engines - possibly optimaxs or Etecs - you need to alter the sampling rate so it measures over a period of time - say 10 seconds or so to smooth out the fuel pulses.
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Old 25 October 2006, 08:58   #6
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Quote:
Originally Posted by Lostboy View Post
Currently £75 here http://www.bosunslockerchandlery.co....?CategoryId=51

Guess who will be ordering one any second now............
Ordered

Thanks Lostboy, cheapest I'd seen was £139.

Nasher
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Old 25 October 2006, 09:23   #7
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I thought you must have, there was only one left and I had gone out to the car to get my card to order it, came back and it had gone!!!!!!
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Old 25 October 2006, 09:23   #8
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Damn good price - grr!!!
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Old 25 October 2006, 10:16   #9
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Quote:
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I thought you must have, there was only one left and I had gone out to the car to get my card to order it, came back and it had gone!!!!!!

Lostboy.....I have a Navman 2100 sat in my garage. Never fitted to a boat, still boxed and with all the fitting instructions..... brand spanking new in fact.
You can have that for £75.
I will even meet half way to deliver it as long as the meeting place is a pub!

I will pee emm my mobile number in case you are interested.
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Old 25 October 2006, 11:47   #10
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Join Date: Jan 2004
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Err, sorry guys, I even went out to lunch whilst I thought about it.

And just to rub it in, they had an extra offer on today and gave me another £5 off. So it was £70, with free delivery in 2 to 3 working days.

As you say, bit of a bargin
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