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Transparent gascolator with drain valve
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undoctor

Joined: 21 Oct 2008
Posts: 212
Location: Bethelhem, PA

Posted: Sat Apr 04, 2009 7:56 am Post subject: Transparent gascolator with drain valve

Dana, does it make a difference (or preferable) whether the gascolator 

is before or after the inline filter?



Dave Kulp

Bethlehem, PA

Firefly 098

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Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Sat Apr 04, 2009 8:27 am Post subject: Transparent gascolator with drain valve

At 12:41 AM 4/4/2009, JetPilot wrote:



 	  Quote: 	
		  That is quite a nice rendering of your gascolator, what program did you 

use to make that picture ?   That should be great, given that you check 

your plastic tanks anyways, you will probably never get more than a trace 

of water in your system.   The biggest problem is, most f us don't have 

the materials and ability to make a gascolator...


	


The rendering was done in KeyCreator (formerly Cadkey, which I've been 

using for years).  This one is real simple to make, at its crudest just a 

saw, drill press, and some drills and taps (though I admit I had a 

machinist friend mill the sides to get them cleaner).



I actually started out intending to use a glass tube clamped between 

endplates with o-rings, but that required a lathe which I don't have... 

then I saw my friend had this bar of Lexan clamped on his Bridgeport...



-Dana



--

  I no longer need to punish, deceive or compromise myself. Unless, of 

course, I want to stay employed.

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henry.voris

Joined: 02 Mar 2007
Posts: 116
Location: Pueo Field, Kula, Maui

Posted: Sat Apr 04, 2009 1:02 pm Post subject: Re: Transparent gascolator with drain valve

04apr09,



Bill,



Below is the URL to a thread from 07 about Mr. Funnel passing water & ethanol...



http://forums.matronics.com/viewtopic.php?p=140224&highlight=#140224

 

Putting desiccants in your tank if you have ethanol in your fuel seems a bit of a waste. That is what the ethanol does. The pipeline companies run ethanol plugs to separate types of products, it doesn't mix with petroleum and will pick up any water left in the pipeline.



Once the alcohol glomms on to the water it takes a two-stage distillation process with the addition of benzene to separate out the water.



How much water will ethanol soak up before suffering phase separation??? Depends on temperature and the concentration of ethanol in the fuel. I have a chart that shows that a 10% mix at 50 F. will suffer separation when the water reaches 0.2%... at 90 F. separation occurred when the water reaches 0.4%. A 20% mix at 50 F. will separate at a concentration of 0.65% and 0.9% at 90 F. More ethanol and higher temperatures allow the fuel to absorb more water before separating. Less ethanol and lower temperatures are more dangerous. So the Rotax required 5% mix is more prone to separate than the 10% we get at the pump.



For my fuel...



I feed any unused fuel to my iron-head Harley... 



I use Mr. Funnel to catch sticks, stones and rat turds...



There is a gasolator at the lowest point of my fuel circuit to deal with separation issues.



And I can assure you, my advice is worth every penny you paid for it...

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_________________
Henry
Firefly Five-Charlie-Bravo

Do Not Archive

williamtsullivan(at)att.n
Guest

Posted: Sat Apr 04, 2009 1:58 pm Post subject: Transparent gascolator with drain valve

Thank you, Henry, very informative.  For the actual amount of water involved with the ethanol, the dessicant cartridge looks like a wasted effort.  It was extremely helpful with the trucks, and also with the occassionally used farm equipment.  With the E-10, a gascolator and MR look like the best bet.

  

                                           Bill Sullivan 

                                           Windsor Locks, Ct.

 [quote][b]

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Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Tue Apr 07, 2009 3:04 am Post subject: Transparent gascolator with drain valve

At 11:55 AM 4/4/2009, Dave Kulp wrote:



 	  Quote: 	
		  Dana, does it make a difference (or preferable) whether the gascolator is 

before or after the inline filter?


	


I'm putting it before the inline filter, so that if it _does_ trap any 

sediment, I'll see it.  Also I'm adding a coarse (170 micron) screen to the 

gascolator outlet to catch any large debris before it gets to the primary 

filter.



-Dana

--

  Remember when a trojan was a warrior?

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Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Sun Apr 26, 2009 10:05 am Post subject: Re: Transparent gascolator with drain valve

Here's the actual installation, on the cross tube under the seat of my UltraStar.  No problems, no leaks, no discernable degradation of the plastic so far.



-Dana



But do you trust the _government_ with semi-automatic assault rifles?

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