CorvAircraft> no gascolator?

[Dave Morris "BigD"]

I recall reading some expert who said you might be able to get away with 
not having a gascolator if you have a composite fuel tank, and something 
about having never encountered water in a gascolator.

I also read this 
http://www.ellison-fluid-systems.com/article/fuelsystemsforhomebuilts/fuelsystems.htm 
where under the heading of Fuel Filters (halfway down) he talks about the 
downside of gascolators.  So, I was originally not going to put a 
gascolator in my plane either.  It seemed like just another single point of 
failure that, if you put a fuel pump upstream of it, becomes a pressure 
blowout point, and if you put the fuel pump downstream, becomes a vapor 
lock point if it is able to collect exhaust heat.  But you'd definitely be 
swimming against the current by choosing not to install one, so I ended up 
putting one into my design after all.

Dave Morris


At 01:52 PM 2/11/2006, you wrote:
>Mark, you really need one as water collects even with 100LL. Some of the  old
>cessnas with metal tanks actually made water. Some sort of venting and
>condensation problem. Put the gascolator on and see how much water you 
>get. I  have
>a 04 trailblazer and had to go to Naples last week. We have a neighborhood
>Chevron so I pulled in to tank up. I should have kept on going when I saw 
>they
>only had one island open and the rest were taped up. Well ,on the way home
>and  late at night with half tank the thing slowed to a stop 5 times. I 
>had to
>pull  off the road each time and it started up. The dealer said "water". I 
>put
>some  dry out stuff and injector cleaner and it has been ok since.
>Steve
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