T&T: fuel polishing motor/flow question

[Jeff Barfett]

My first Walbro lasted 7 years, but only maybe 50 hours total use. Expensive
pump! Went with a unit sold via Auto Zone parts store E8016S, it is an
impulse pump with the same volume and pressure as the Walbro, but comes with
a lifetime warranty for $35.00.  Also use this same pump on the Espar heater
unit, after a Walbro failed here. Also added a Carter rotary vane pump for
more pressure and volume - still cheaper that the Walbro at $75.00.

Your mileage may vary.

Jeff on Southern Nights

-----Original Message-----
From: trawlers-and-trawlering-bounces@lists.samurai.com
[mailto:trawlers-and-trawlering-bounces@lists.samurai.com] On Behalf Of
Robert Hoffman
Sent: Friday, October 13, 2006 7:52 PM
To: Larry W. Telford
Cc: trawlers-and-trawlering@lists.samurai.com
Subject: Re: T&T: fuel polishing motor/flow question

Do you have the exact model/motor setup and other details on this  
pump.  I tried to look at Depco but they only list the pumps w/o motor.
I also have had the same problem with 2 Walbros.
Rob Hoffman
Ocean Alexander 486
On Oct 12, 2006, at 6:27 PM, Larry W. Telford wrote:

> Greg:
>
> What you describe is exactly what happened with my original  
> installation
> using the Walbro, although I installed the big Gulf Coast filter  
> instead
> of the Racors.  I do have a Racor coming off the return manifold from
> the polishing system which feeds the engines and the generator.  About
> six months or so following the original install, the Walbro began  
> to bog
> down and show minimal vacuum, even with a brand new filter element.
> That's when I bit the bullet and installed the Oberdorfer bronze gear
> pump w/ 120 gph capacity recommended by Gulf Coast.  I've run it for
> over a two years now, with no problems or even the slightest  
> tendency to
> slow down, even when the vacuum gauge has moved up 7 -10 inches of
> vacuum from the initial reading at installation of a new polishing
> filter element (7 -10" gain is when I change the paper towel element -
> they're cheap).
>
> Larry Telford
> Carpe Diem
> 1985 Royal Star 42
> Emery Cove YH
> San Francisco Bay
>
> -----Original Message-----
> From: trawlers-and-trawlering-bounces@lists.samurai.com
> [mailto:trawlers-and-trawlering-bounces@lists.samurai.com] On  
> Behalf Of
> eassociates
> Sent: Thursday, October 12, 2006 4:07 PM
> To: trawlers-and-trawlering@lists.samurai.com
> Subject: T&T: fuel polishing motor/flow question
>
>
> I hate to bring up fuel polishing again but I have a flow problem. My
> Walbro has run fine through Racor's for months but it seems to have
> slowed down to the point of very little flow. I have changed the  
> filters
> several times just to make sure that is not the problem. HOWEVER,  
> when I
> remove either Racor filter from the Racor, the Walbro picks up its  
> speed
> and sounds like it originally did when initially installed.
>
> I have a 3.8" ID on my fuel lines and that is the size of the boats  
> fuel
> lines as well. I use a Racor with the Walbro for each tank as a
> polisher, these are not used on the engines, there are two other  
> Racors
> with the engines.
>
> Does anyone feel I am holding back the potential flow of the Walbro
> because of the size of these lines? The boat (Ocean Alexander) has run
> fine on 3/8" lines since 1982 and the polishing has worked for four
> months so I dont feel that is the problem. When I first installed the
> Walbro, the flow was 30 gallons per hours. I have not re-tested that
> because it has been hooked up through the existing fuel manifolds into
> the tanks but you can hear the Walbro pump almost come to a halt, it
> slows that much.
>
> I have the Racors ahead of the Walbro with 2 micron's ( the same as I
> use on the boat's engines)
>
> I cannot find any blockage in the lines. Any ideas here?
>
> Thanks for your time,
>
> Greg Esser
> Ocean Alexander
> Hilton Head Island, SC _______________________________________________
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