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Fuel usage gages with transducer

Old 04-14-2003, 04:18 PM
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Default Fuel usage gages with transducer

What type of fuel usage gage should I use with 2001 Crusader 5.7L MPI inboard? Standard Horizon and Navman say to install transducer after fuel/water separator but this is impossible given that the separator is mounted on the engine and there is no access to the fuel line after the separator. Instructions for the gages also seem to say not to use them with MPI engines. There also may be an issue with fuel pressure.

There must be some kind of electronic gage. Is there?
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Old 04-15-2003, 08:03 AM
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Default Fuel usage gages with transducer

Any brand of fuel flow measuring device is going to specify that the transducer must be placed downstream of the fuel/water seperator. This is necessary to keep small particulate out of the transducer, in order to protect the small bearing surfaces inside.

In your case, you might consider installing an additional fine-pore in-line filter upstream of the fuel/water seperator, and put the transducer in between the two filters.

Only concern is whether the additional pressure drop across a second filter - plus the small drop across the transducer - will be too much "suction loss" for your fuel pump.

2002 GW Islander 270 - 2001 Yam 250 OX66. Fishin' & cruisin'
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