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Hi to all,
A few BCC owners and the Sam L. Morse Company are investigating two products that clean and purify diesel fuel. We are considering using these products on our boats and perhaps as standard on new boats. The fuel purifier does not use a replaceable element but will separate water and solids from the diesel by passing the diesel through this canister that forces the diesel into a vortex which forces the water and solids to separate and settle in the bottom of the canister to be drained off later. This purifier is called RCI Fuel Purifier. Apparently, the Coast Guard and Navy are using this unit...so I am told by the rep. The other product is a fuel additive called Hammer Down that conditions the fuel. I don't want to go into anymore details because my purpose is to find out if anyone out there has had any experience with these two products. I pay more attention to our owners than I do to any sales representative.
Hope to see everyone for the rendezvous in June.
Roger Olson
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First hand experience - none. Does not prevent me from having
opinions.
My understanding is that vortex type separators work due to a rate
of flow that is not achieved with our little engines. Works fine for
the fuel hogs run by the govt. My big Racor has this feature, but
again, low flow prevents the swirling of the fuel necessary to
generate the centrifugal force that causes separation of impurities.
The Racor rep told me to buy a smaller filter (!). I wanted the
sight bowl and replaceable element of the 500 size, he warned me
the “turbo” feature would not work right at less than a gallon an
hour (it is rated at 500 gph).
The prior owner was an obsessive about clean fuel, changing filters
every 50 hours, etc. The boat did not have a deck fill (leaky O-ring
is a common unrecognized source of H2O in fuel) and he got fuel at a
truck stop to ensure its freshness, filtering it into the jerry jug
and again into the tank. I still had crud in the bottom of the
tank. It has kind of made me fatalistic about fuel contaminants,
that they are unavoidable and that actual fuel tank cleaning
(manually, not one of these “fuel polishing” schemes) should be a
maintenance item every few years.
— In bcc@yahoogroups.com , “Roger Olson” <roger.olson@a…> wrote:
Hi to all,
A few BCC owners and the Sam L. Morse Company are investigating two
products that clean and purify diesel fuel. We are considering using
these products on our boats and perhaps as standard on new boats.
The fuel purifier does not use a replaceable element but will
separate water and solids from the diesel by passing the diesel
through this canister that forces the diesel into a vortex which
forces the water and solids to separate and settle in the bottom of
the canister to be drained off later. This purifier is called RCI
Fuel Purifier. Apparently, the Coast Guard and Navy are using this
unit…so I am told by the rep. The other product is a fuel additive
called Hammer Down that conditions the fuel. I don’t want to go into
anymore details because my purpose is to find out if anyone out there
has had any experience with these two products. I pay more attention
to our owners than I do to any sales representative.Hope to see everyone for the rendezvous in June.
Roger Olson
|
Fuel flow is too low to work in the RCI filter. I use them in my fleet of trucks and they work just fine but the don't work in the small fuel flow situations. The cannot swirl the fuel which is essential for the operation as designed.
They will cause a drop in fuel pressure and introduce a greater likelihood of air in the fuel lines.
Jim
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Thanks to those who responded on the RCI fuel purifier. It seems there is agreement as to its efficiency based on the flow rate. This was my concern as well but the president of the company said it made no difference but I cannot see how it would not make a difference. Thanks for the input Jcskua and Jim.
Roger Olson
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This is probably not practical, but worth a thought for future
designs. All aircraft have a sump drain located at the lowest point
of the fuel tank that can be drained regularly. Water and other
stuffthat is heavier than fuel settles to the bottom and can be
easily removed from the tank as part of the “pre-sail” check. A valve
and cup is all that is needed. As I said this may not be practical
for boats since there is not much room below most fuel tanks for the
valve, but it may be worth looking at.
John
Coast Guard regs prohibit a drain at the lowest point. Interesting though,
Lloyds insists on it for boats built on the other side of the pond (
Atlantic pond that is)
----- Original Message -----
From: “John” <porterjet@yahoo.com >
To: <bcc@yahoogroups.com >
Sent: Tuesday, April 15, 2003 10:22 AM
Subject: [bcc] Re: Fuel purifiers and additives
This is probably not practical, but worth a thought for future
designs. All aircraft have a sump drain located at the lowest point
of the fuel tank that can be drained regularly. Water and other
stuffthat is heavier than fuel settles to the bottom and can be
easily removed from the tank as part of the “pre-sail” check. A valve
and cup is all that is needed. As I said this may not be practical
for boats since there is not much room below most fuel tanks for the
valve, but it may be worth looking at.
JohnBRISTOL CHANNEL CUTTER OWNERS ASSOCIATION
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