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07-09-2018, 05:17 AM
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#61
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Guru
Join Date: Oct 2007
Posts: 22,553
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It is normal that liquid pumps push better than they pull.
The use of a rubber bulb is a far better idea than any electric pump if needed before a filter bank.
The electric pump can easily mix any water with the fuel making the filters work much harder.
The rubber hand pump will do less shredding and mixing , so is probably a better installation, although an electric pump would be fine if pulling rather than pushing.
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07-11-2018, 12:25 PM
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#62
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Guru
City: hawaii
Vessel Name: #31
Vessel Model: ex-Navy MUB 50 fish/cruise
Join Date: Aug 2013
Posts: 873
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Quote:
Originally Posted by dhays
You are correct. However, if I were to open up the fuel lines ahead of the filters in order to install the squeeze bulb, I would end up making a mess. I'm not a very accomplished mechanic and can find new and interesting ways to make a mess of things.
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Isn’t there a shutoff valve at the tank?
In most usual circumstances, you will only be dealing with a cup full or so of diesel fuel. Cover the area with oil absorbent diapers and get a catch container handy and do it. Spray som Fabreeze when you’re done!
A squeeze bulb is incredibly simple and effective, gives much better control than a motorized pump when performing potentially messy tasks like topping off a Racor.
__________________
You can lead a horse to water,
But you can't make him ski...
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07-12-2018, 08:44 PM
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#63
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Veteran Member
City: Saint Joseph, Mi
Join Date: Apr 2018
Posts: 29
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Is it OK to use nylon hose barbs in my fuel filtering system? I'm having a hard time finding brass 3/8 inch, ID, 90's??
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07-12-2018, 08:52 PM
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#64
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Guru
City: Quebec
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 4,375
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Quote:
Originally Posted by CaptFun6068
Is it OK to use nylon hose barbs in my fuel filtering system? I'm having a hard time finding brass 3/8 inch, ID, 90's??
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Not sure of the fitting you are searching for but here great chance you will find
https://www.new-line.com/fittings/br...ss-barb-x-mnpt
Also instead using barb why not to get hose made with flare or JIC fittings?
L
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07-13-2018, 05:31 AM
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#65
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,146
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Wait till the "brass doesn't belong on a boat" police wake up.....
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07-16-2018, 02:13 PM
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#66
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Senior Member
City: St James City Fl
Vessel Name: Paradox
Vessel Model: Mainship
Join Date: Oct 2013
Posts: 165
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07-16-2018, 07:47 PM
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#67
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Senior Member
City: Edmonton area/Nanaimo BC
Vessel Name: Soul Fisher
Vessel Model: Palmer
Join Date: Jul 2016
Posts: 101
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Quote:
Originally Posted by Autoteacher
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There are unlimited different ways of filtering fuel but I think Tony is right on the money with his simple but effective approach and using a minimum of 3 stages with progressively finer filter media ending up at 2-5 microns. There is not a lot wrong with a $3000 Racor or Reverso pre made system but you can end up with a better system that can fit a smaller space for a few hundred with some thought and work. My 40 year old Farrel 40' has a 120 HP Mitsubishi 6D14 and 2 250 gallon fuel tanks. No water in the sumps and decently clean fuel but I wanted to design a fuel polishing system that gives me the ability to completely empty one tank and filter it into the other tank when the fuel level is below 1/2. With 2 ball valves on a T I can select the source and with a $150 Stewart Warner 60 gph pump I can draw all the fuel through a common and cheap Fleetguard FS1212 as a 20 micron pre filter, then through a Racor 900 with 10 micron water repelling element, and finally after the pump, through a huge Cat 26 gpm, 5 micron 1R 0755 with hand primer pump that I was given. These are used on 3512 and 16s in 3-400 ton rock trucks with 2-3000 hp. With a selector valve after the 755, I can return to tank(s) or pressure feed to the engine filters as an alternate source and to bleed engine filters. I have a 3 way switch to be able to turn the pump on/off in the er or the helm as well as a master at the helm. The pressure gauge after the pump and before the 755 shows 4-5 psi so if the pre filters are plugging, pressure drops, and if pressure rises, the 755 must be plugging. The whole system, including new 1R0749 Cat 2 micron final engine filter (which is used on most Cat truck engines and lots of Cat equipment and available everywhere as well as in other brands), cost about $300 plus some hose and fittings for a system that gives me lots of filter capacity and lots of options when underway. The filter bases are from NAPA for about $25 with one inch and 14 tpi. I will still add a second remote pressure gauge to watch filter condition while underway. Tony's suggestion of a mechanical timer on the circulating pump is very good too.
If anyone wants pics or info I will email from my phone
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07-25-2018, 10:55 AM
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#68
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Senior Member
City: Alexander
Join Date: Aug 2017
Posts: 152
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Quote:
Originally Posted by dhays
Makes sense. Mine is pretty simple, but I added labels as well. I’ve been known to make mistakes when distracted.
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Haven’t we all. Simple and well labeled. As a pilot how many have feathered the wrong engine at the most inopportune time. The silence is incredible.
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09-29-2018, 08:29 PM
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#69
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Senior Member
City: Camarillo
Join Date: May 2015
Posts: 438
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Old style RACOR parallel Fuel Filters work great
These old style RACORS that are not the single handle new style, but use 4 ball valves can be had as used items at various marine consignment stores for a reasonable cost & work astonishingly well.
The filters are in PARALLEL - not series.
Good luck.
Alfa Mike
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09-30-2018, 12:02 AM
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#70
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Senior Member
City: Pensacola, FL
Vessel Name: Rain Dog
Vessel Model: Grand Banks 42 Classic
Join Date: Feb 2016
Posts: 184
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Quote:
Originally Posted by Heron
I'm running progressive filters. A 27 micron big Fleetguard into a 10 micron Racor and on to a 2 Micron engine filter (with an Aux 10 micron Sierra for the cleaning cycle) When I re-did the system last year I added in a Pass thru style Walbro Pump and a 3 way valve so I can clean/polish, or shift fuel from tank to tank. Works great and less than $200 for all the hardware..
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Nice setup. I want to replace my whole system. This seems like a great idea for my boat.
Why did you add the Sierra instead of using the Racor when polishing?
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10-09-2018, 07:56 AM
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#71
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Veteran Member
City: Saint Joseph, Mi
Join Date: Apr 2018
Posts: 29
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Thank you, Thank you, one and all. I made a portable system that I hook-up when I'm at the boat and a permanent pair of racors mounted to a bulkhead at the base of the stairs. If you remember my original issue, I had to lay over the motor in order to reach the single filter.
The portable system is mounted to starboard with a HD diesel fuel pump. I've used the portable system on my fuel storage at home. Very cool idea, well worth the effort. The "Forum" is the place to go.
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