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Conference unifix::sailing

Title:	SAILING
Notice:	Please read Note 2.* before participating in this conference
Moderator:	UNIFIX::BERENS

Created:	Wed Jul 01 1992
Last Modified:	Mon Jun 02 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2299
Total number of notes:	20724

346.0. "Racor Fuel Filter" by CURIE::DONOHUE () Thu Jun 26 1986 18:32

    I have added a racor filter to the desiel in my boat.  The instructions
    are a little vague on draining water (it is a filter and water
    seporator).  As I understand it, water should be visible in the
    plastic bowl (if there is any).  If I open the drain fitting on
    the bottom of th bowl, will i let air into the fuel system?  Will
    I have to bleed it?  Does the water settle to the bottom of the
    bowl.
    
    Thanks for any help.
    
                      John

T.R Title User Personal
Name Date Lines

346.1 how to do it PULSAR::BERENS Alan Berens Thu Jun 26 1986 21:16 18

T.R	Title	User	Personal Name	Date	Lines
346.1	how to do it	PULSAR::BERENS	Alan Berens	`Thu Jun 26 1986 21:16`	18
	Yes, the water is supposed to settle to the bottom of the bowl (we've never had enough to be visible). You have to loosen the top cover before opening the drain (or else the water/diesel won't drain). The fuel inlet/outlet are well below the top of the filter, so a little air at the top won't matter. Don't allow the fuel to drop below the inlet/outlet level or you will get air into the fuel lines (necessitating bleeding the lines). On our engine the mechanical fuel pump has a hand priming lever. A few strokes pulls enough fuel into the filter to fill it back up. Cranking the engine momentarily accomplishes the same thing. Be sure to replace the filter element yearly or so. Our Racor is the primary filter. The additional filters between the Racor and the injection pump have never shown any signs of dirt or other contamination. This makes me think that the Racor is quite efficient. Clean fuel, I am told, is the secret to keeping a diesel happy. Alan

Yes, the water is supposed to settle to the bottom of the bowl (we've 
never had enough to be visible). You have to loosen the top cover before 
opening the drain (or else the water/diesel won't drain). The fuel 
inlet/outlet are well below the top of the filter, so a little air at 
the top won't matter. Don't allow the fuel to drop below the 
inlet/outlet level or you will get air into the fuel lines 
(necessitating bleeding the lines). On our engine the mechanical fuel 
pump has a hand priming lever. A few strokes pulls enough fuel into the 
filter to fill it back up. Cranking the engine momentarily accomplishes 
the same thing. Be sure to replace the filter element yearly or so. Our 
Racor is the primary filter. The additional filters between the Racor 
and the injection pump have never shown any signs of dirt or other 
contamination. This makes me think that the Racor is quite efficient. 
Clean fuel, I am told, is the secret to keeping a diesel happy. 

Alan