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13-07-2012, 11:40
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#1
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Registered User
Join Date: May 2011
Posts: 98
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Racor Drain Requires Bleed?
Question, will draining off a bit of fuel/water from sight bowl bring on a low pressure side bleed? Yannie 2GM20F running great...don't want to fix what ain't broken. Thoughts? Tnx
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13-07-2012, 11:57
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#2
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Senior Cruiser
Join Date: Oct 2007
Location: 29° 49.16’ N 82° 25.82’ W
Boat: Pearson 422
Posts: 16,306
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Re: Racor Drain Requires Bleed?
May depend to some degree on how your boat is set up. If the filter is below the fuel level in your tank then should not be a problem. Just make sure the feed from the tank to the filter is open and drain the crude out of the bottom of the Racor. New fuel should feed in to replace what you drain out.
If the Racor is higher than the fuel in the tank then you might end up with a little air in the top of the Racor which you could top off with a little extra diesel before you fire up the engine.
__________________
The water is always bluer on the other side of the ocean.
Sometimes it's necessary to state the obvious for the benefit of the oblivious.
Rust is the poor man's Loctite.
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13-07-2012, 12:33
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#3
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Registered User
Join Date: Jul 2012
Posts: 42
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If you have crap in the bottom of your racor bowl definently drain it with the engine off of course. And as the previous poster said top it off w/ fuel and re-seal. You fuel inlet pressure will drop and the engine will be happy.
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13-07-2012, 13:05
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#4
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Registered User
Join Date: May 2011
Posts: 98
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Racor should be below fuel level, somewhat. Good advice Shipmates. Tnx. Filters are changed out, but never had need to drain a bit. Assumed I could do so without introducing air into fuel system.
Bob
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13-07-2012, 13:35
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#5
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Registered User
Join Date: Apr 2008
Location: Covington, LA
Boat: Watkins 29, Southern Dream
Posts: 19
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Re: Racor Drain Requires Bleed?
When you open the drain on your Racor FG500, a little diesel (or whatever lies at the bottom of the filter) will drain -then stop. If you need more to drain, you will have to open the top which will allow the full contents of the filter to run out. Fuel will run back down the in coming hose if the filter is higher than your tank if you can't shut off a valve at the filter inflow. If you fill the filter up to the top with fresh diesel, seal the lid, and then manually prime the fuel pump, on the Yanmar 2G, you can probably get by with out a full bleed. Let the engine run for 15 minutes or so before heading out to make sure you have no air in the fuel line. If the engine dies, simply start the bleed process at the secondary filter.
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Joe Ward
Southern Dream
New Orleans, LA
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13-07-2012, 14:53
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#6
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Registered User
Join Date: Dec 2006
Location: Seattle
Boat: Cal 40 (sold). Still have a Hobie 20
Posts: 2,944
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Re: Racor Drain Requires Bleed?
Quote:
Originally Posted by MasterMariner
If you have crap in the bottom of your racor bowl definently drain it with the engine off of course. And as the previous poster said top it off w/ fuel and re-seal. You fuel inlet pressure will drop and the engine will be happy.
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I don't think the vacuum will drop by draining crap out the bottom, it will drop if you replace a clogged filter.
John
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13-07-2012, 14:54
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#7
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Registered User
Join Date: Jul 2012
Posts: 42
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Quote:
Originally Posted by cal40john
I don't think the vacuum will drop by draining crap out the bottom, it will drop if you replace a clogged filter.
John
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Thanks John that is what I meant to say forgot the filter part
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14-07-2012, 11:50
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#8
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Eternal Member
Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
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Re: Racor Drain Requires Bleed?
You can remove the bowl,,,,there is a gasket/o=ring and wipe it clean
use no solvents
Do not over tighten the screws
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15-07-2012, 14:36
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#9
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Registered User
Join Date: May 2011
Posts: 98
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Tnx again Shipmates...wishing you clean fuel. . .
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16-09-2012, 14:53
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#10
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Registered User
Join Date: May 2011
Location: New Smyrna Beach, Fl
Posts: 115
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Re: Racor Drain Requires Bleed?
Tried to drain fuel out of racor today by removing screw on bottom of filter but nothing came out. Normally I change the filters every 100 hrs although I have never drained them before. Do you need to loosen t-handle and cap to release diesel?
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17-09-2012, 05:00
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#11
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Registered User
Join Date: Aug 2012
Location: Maryland, USA
Boat: 58' Sedan Bridge
Posts: 5,418
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Re: Racor Drain Requires Bleed?
Quote:
Originally Posted by C Skip R
Tried to drain fuel out of racor today by removing screw on bottom of filter but nothing came out. Normally I change the filters every 100 hrs although I have never drained them before. Do you need to loosen t-handle and cap to release diesel?
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Might just be clogged; tie inserting something (tie wrap? straightened paper clip? to see if that helps. Otherwise, slightly loosening the T-handle may be required.
Of course be prepared to "catch" the drainage. Zip locs or whatever, backstopped with a Zorb cloth (or diaper), etc.
A big light source behind the sight bowl will often help you tell more easily whether drainage is even required...
-Chris
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Chesapeake Bay, USA.
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17-09-2012, 05:22
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#12
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Senior Cruiser
Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 49,082
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Re: Racor Drain Requires Bleed?
See Racor Service Manuals & User Guides
➥ Parker - Engineering Your Success
Including Racor 120A and 120B Series fuel filter/water separators
➥ http://www.parker.com/parker/jsp/doc...0048021dacRCRD
and more ...
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"
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