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Old 02-05-2010, 13:50   #1
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Garmin Fuel Flow Meter

Has anyone here used the Garmin GFS-10 fuel flow sensor with Mercruiser 7.4 MPI engines? I have a Sea Ray 340da with 7.4 MPIs that I would like to add the fuel flow function to my Garmin 4212. The GFS-10 is made with 3/8" barb fittings and is rated at up to 50 gph. My mechanic says the fuel lines are 1/2". Not quite sure what to do. Any suggestions?

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Rick
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Old 02-05-2010, 14:46   #2
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SeaRay uses sweged flair fittings. Yes you have 1/2" hose. Place the transducer as close to the engine as possible. This will minimize the length at 3/8"
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Old 02-05-2010, 14:56   #3
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Will installing the transducer have any effect on power due the smaller size?

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Old 02-05-2010, 16:44   #4
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Will installing the transducer have any effect on power due the smaller size?

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don't know, never used one.
I can imagine a small imperceptible change. But, that's why I said mount it as close to the engine as possible.
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Old 01-08-2011, 21:28   #5
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Re: Garmin Fuel Flow Meter

How did you make out with the GFS-10 installation. I just installed a Garmin 4208. I would like to install these on my 1996 twin Marine Power 454's, but I believe I have return fuel lines (I don't know for sure)?
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Old 02-08-2011, 05:39   #6
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Re: Garmin Fuel Flow Meter

I didn't . . . I went with Floscan instead and they have worked flawlessly. There were some problems with the mounting of the Garmin flow sensors due to the routing of the fuel lines. I did head from some people who had used them and they worked fine.
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Old 02-08-2011, 06:19   #7
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Re: Garmin Fuel Flow Meter

Greetings and welcome aboard the CF, JoeWoe44.
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