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-   -   Diesel fuel separator (http://www.irv2.com/forums/f84/diesel-fuel-separator-267796.html)

Bigpower 10-22-2015 07:35 PM

Diesel fuel separator
 
We just purchased a 2004 Avalanche 400 diesel motorhome. We have never owned a diesel before. Instructions say to empty fuel/water separator everyday. I feel so stupid....does anyone know where that is located? Thanks for any help.

abarkl 10-22-2015 07:44 PM

Mine is on the bottom of the secondary fuel filter. It's a clear bowl with a thumb screw on the bottom, but the one time I opened mine I had to re-prime the fuel system.

H. Miller 10-23-2015 05:16 AM

Believe you'll find this is one of the most ignored "check list items" found on most motorhomes. If you get a load of water/diesel the little 3-4 oz. separator mentioned above isn't going to help except to tell you "there's water down here".
BUY DIESEL at a "high traffic" station (we only use truck stops) and help eliminate the water problem. Also FILL the fuel tank after every use which will slow any condensation possibilities.
We do our own oil/fuel annual filter changes (for 7 years) and have never found water in either filter (our Monaco has 2 fuel filters - both of which have a water drain)

deandec 10-23-2015 10:38 AM

After a few days you find that instruction will be excessive for a motorhome.

bdpreece 10-23-2015 10:49 AM

Do not and I will repeat DO NOT EMPTY THE FUEL/WATER SEPARATOR!! If you do you will most probably cause your engine to air lock. The correct procedure is to drain about two teaspoons off into a clear container or plastic baggie and visually inspect for water and like everyone else is saying most of us do it very seldom. Myself I probably check mine once or twice a year.

Bigd9 10-23-2015 11:18 AM

Our water/diesel bowl is clear and I can see if we ever get water. It is the primary filter for the CAT C-7 engine, and ours is located passenger side, rear next to the radiator. We fuel mostly at what ever is available along the way and we never had any water in the diesel fuel in the past 15 years.


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