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Old 12 December 2005, 15:17   #1
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Navman Fuel 2100

At the Navman-site it says: Suitable for carbureted 2- stroke engines from 50-300hp carbureted 4-stroke engines from 90- 300hp. Minimum flow rate 5 litres (1.3 US gallons) per hour.
Is there anyone who uses the Navman Fuel 2100 with an injection engine?
I want to use it with an Evinrude DI engine of 250hp. Is that going to work?
Please help me out.
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Old 12 December 2005, 15:32   #2
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Ive got my F2100 in my hand as I've just received it from the states (< 70)

There is a big red sticker on the transducer bag explaining that it cannot be used with EFI engines that have a fuel return line to the tank.

Obviously in these type of engines not all the fuel traveling up the fuel line is used and a certain amount of it is returned to the tank.

If your engine has a return fuel line then you will need to use the unit designed for diesel engines where that is the norm and you have a transducer on both the feed and return lines and the unit calculates the difference.
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Old 12 December 2005, 15:36   #3
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Evinrudes don't have a fuel return line to the tank. So it's OK?
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Old 12 December 2005, 18:11   #4
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Quote:
Originally Posted by MarkM
Evinrudes don't have a fuel return line to the tank. So it's OK?
I think so but what you do have to mess with is the refresh rate or update period or whatever they call it - set a long delay because the engine uses fuel in pulses and you need to measure the average.
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Old 13 December 2005, 04:01   #5
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Don't forget to read the operators manual or ask a dealer - the Optimax range actually mention that you shouldn't use one in thier fuel lines - not that you would need one as thier own instruments are good enough on thier own!
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When a boat looks that good who needs tubes!!!
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Old 16 December 2005, 14:34   #6
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With the Evinrude Injection system we found that at tick over , we were getting high readings of 20-30 l/h which is caused buy the 'pulsing' of the high pressure pump..... we solved this buy putting in about 5 foot of extra coiled fuel hose, between the sensor and the engine , which absorbed the pulsing , and made the reading accurate ....... We found that the navman stuff was accruate to about 5%
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Old 16 December 2005, 14:47   #7
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Quote:
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With the Evinrude Injection system we found that at tick over , we were getting high readings of 20-30 l/h which is caused buy the 'pulsing' of the high pressure pump..... we solved this buy putting in about 5 foot of extra coiled fuel hose, between the sensor and the engine , which absorbed the pulsing , and made the reading accurate ....... We found that the navman stuff was accruate to about 5%
Isn't that what the longer period sampling rates are for???
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Old 16 December 2005, 17:48   #8
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Codders is correct.

I have just finished installing mine on literally 15 minutes ago.

Whilst testing it with the engine at various rpm in neutral (as i was in my drive not on the water) I found that on the default setting of 10 seconds i was getting periods of 0 consumption followed by periods of 10 or 20 litres / hour.

I increased the Average setting to 30 seconds and i now get a stable 0.5 to 0.6 litres / hour at tick over.
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Old 17 December 2005, 06:10   #9
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Thank you all for the answers. In the meantime I've got an answer from Plastimo and they say it should be ok.
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Old 19 December 2005, 05:12   #10
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Ask Plastimo if they will take on the warranty of your engine as well!

If you have an engine problem and the dealer says it's the fault of the Navman stuff you won't have a leg to stand on - ask them as well!
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Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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