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Mildly Dirty Fuel

RR
Ron Rogers
Mon, Oct 25, 2004 1:37 AM

Just changed the Racor filters and cleaned the bowls - pretty dirty. No
reliable data on the last time they were truly changed - maybe February,
2003.

So, I need advice. Do I dilute the old, dirty fuel with 200 gallons of new
fuel, or keep using the old fuel and monitoring the filters?

Ron Rogers
Willard 40 AIRBORNE
Lying Annapolis

Just changed the Racor filters and cleaned the bowls - pretty dirty. No reliable data on the last time they were truly changed - maybe February, 2003. So, I need advice. Do I dilute the old, dirty fuel with 200 gallons of new fuel, or keep using the old fuel and monitoring the filters? Ron Rogers Willard 40 AIRBORNE Lying Annapolis
AH
Alex Hirsekorn
Mon, Oct 25, 2004 7:04 AM

----- Original Message -----
From: "Ron Rogers" rcrogers6@kennett.net

So, I need advice. Do I dilute the old, dirty fuel with 200 gallons
of new
fuel, or keep using the old fuel and monitoring the filters?

Hi Ron,

I don't really have any advice in the strictest sense but here are a
few things to think about:

  1. You've got 400 gallons of fuel in 600 gallons storage capacity. If,
    for the sake of simple numbers, you use 100 gallons per month and you
    don't top off your tanks, you'll be rid of the dirt in 4 months. OTOH:
    If you do top off then it will take you 6 months to accomplish the
    same thing. That argues in favor of not filling the tanks yet.

  2. Winter is coming and for most of us that means the boat isn't going
    to be running much. If that description fits you then filling the tank
    is a good idea since it will reduce any condensation problem.

  3. Murphy's law states that if you do top off the tanks, fuel prices
    will immediately drop but if you don't then those same prices will
    rise steadily until you do top off (then they'll drop).

  4. Putting in a polishing system is probably the best answer. Keep in
    mind that GCF's 'Jr' series of filters don't provide for water
    separation. Since you've already got a Racor your best bet is to plumb
    the fuel from tank to pump to Racor to GCF Jr. to engine or back to
    tank (The Walbro pump will allow fuel to pass even when it's shut
    off).

  5. Since you don't really know how much fuel has gone through the
    Racor you just changed it might be worth considering to just do
    nothing other than monitoring the filters and vacuum gauge until you
    do have some hard data to consider.

Conservatively yours,

Alex

----- Original Message ----- From: "Ron Rogers" <rcrogers6@kennett.net> > > So, I need advice. Do I dilute the old, dirty fuel with 200 gallons > of new > fuel, or keep using the old fuel and monitoring the filters? > Hi Ron, I don't really have any advice in the strictest sense but here are a few things to think about: 1. You've got 400 gallons of fuel in 600 gallons storage capacity. If, for the sake of simple numbers, you use 100 gallons per month and you don't top off your tanks, you'll be rid of the dirt in 4 months. OTOH: If you do top off then it will take you 6 months to accomplish the same thing. That argues in favor of not filling the tanks yet. 2. Winter is coming and for most of us that means the boat isn't going to be running much. If that description fits you then filling the tank is a good idea since it will reduce any condensation problem. 3. Murphy's law states that if you do top off the tanks, fuel prices will immediately drop but if you don't then those same prices will rise steadily until you do top off (then they'll drop). 4. Putting in a polishing system is probably the best answer. Keep in mind that GCF's 'Jr' series of filters don't provide for water separation. Since you've already got a Racor your best bet is to plumb the fuel from tank to pump to Racor to GCF Jr. to engine or back to tank (The Walbro pump will allow fuel to pass even when it's shut off). 5. Since you don't really know how much fuel has gone through the Racor you just changed it might be worth considering to just do nothing other than monitoring the filters and vacuum gauge until you do have some hard data to consider. Conservatively yours, Alex
K
Keith
Mon, Oct 25, 2004 12:23 PM

Sounds like the filters are doing their job. You didn't have an estimate of
how many engine hours were run in that time period, but assuming "normal"
use I would expect to find them dirty. If you think you have a dirty fuel
problem, shock it with Soltron or other treatment, then have it polished.
However, from your description, I wouldn't think it was a problem. You could
either run it as is or fuel up... the filters will take care of the normal
level of contamination.

I shocked mine, had the fuel polished, etc. and the filters (2  micron)
still get dirty... I change them every 6 months or so, just to be safe
(single engine!)

Keith
__
Nothing is foolproof to a sufficiently talented fool.
----- Original Message -----
From: "Ron Rogers" rcrogers6@kennett.net

Just changed the Racor filters and cleaned the bowls - pretty dirty. No
reliable data on the last time they were truly changed - maybe February,
2003.

So, I need advice. Do I dilute the old, dirty fuel with 200 gallons of new
fuel, or keep using the old fuel and monitoring the filters?

Sounds like the filters are doing their job. You didn't have an estimate of how many engine hours were run in that time period, but assuming "normal" use I would expect to find them dirty. If you think you have a dirty fuel problem, shock it with Soltron or other treatment, then have it polished. However, from your description, I wouldn't think it was a problem. You could either run it as is or fuel up... the filters will take care of the normal level of contamination. I shocked mine, had the fuel polished, etc. and the filters (2 micron) still get dirty... I change them every 6 months or so, just to be safe (single engine!) Keith __ Nothing is foolproof to a sufficiently talented fool. ----- Original Message ----- From: "Ron Rogers" <rcrogers6@kennett.net> > Just changed the Racor filters and cleaned the bowls - pretty dirty. No > reliable data on the last time they were truly changed - maybe February, > 2003. > > So, I need advice. Do I dilute the old, dirty fuel with 200 gallons of new > fuel, or keep using the old fuel and monitoring the filters?
JM
Judge Manning
Mon, Oct 25, 2004 12:48 PM

Finding dirt & water in your Racor filters is not necessarily a bad thing.
Finding No dirt or water would suggest to me that your fuel is not properly
filtered. Just another angle.

Judge
(No boat yet, but a lot of trucks)

----- Original Message -----
From: "Ron Rogers" rcrogers6@kennett.net
To: "Trawlers & Trawlering" trawlers-and-trawlering@lists.samurai.com;
LRZeitlin@aol.com; "Alex Hirsekorn" alexh@olypen.com
Sent: Sunday, October 24, 2004 9:37 PM
Subject: T&T: Mildly Dirty Fuel

Just changed the Racor filters and cleaned the bowls - pretty dirty. No
reliable data on the last time they were truly changed - maybe February,
2003.

So, I need advice. Do I dilute the old, dirty fuel with 200 gallons of new
fuel, or keep using the old fuel and monitoring the filters?

Ron Rogers
Willard 40 AIRBORNE
Lying Annapolis


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Finding dirt & water in your Racor filters is not necessarily a bad thing. Finding No dirt or water would suggest to me that your fuel is not properly filtered. Just another angle. Judge (No boat yet, but a lot of trucks) ----- Original Message ----- From: "Ron Rogers" <rcrogers6@kennett.net> To: "Trawlers & Trawlering" <trawlers-and-trawlering@lists.samurai.com>; <LRZeitlin@aol.com>; "Alex Hirsekorn" <alexh@olypen.com> Sent: Sunday, October 24, 2004 9:37 PM Subject: T&T: Mildly Dirty Fuel > Just changed the Racor filters and cleaned the bowls - pretty dirty. No > reliable data on the last time they were truly changed - maybe February, > 2003. > > So, I need advice. Do I dilute the old, dirty fuel with 200 gallons of new > fuel, or keep using the old fuel and monitoring the filters? > > Ron Rogers > Willard 40 AIRBORNE > Lying Annapolis > _______________________________________________ > http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering > > To Unsubscribe send email to trawlers-and-trawlering-request@lists.samurai.com > Include the word Unsubscribe (and nothing else) in the subject or body of the message. > >