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Re: Europa-List: Vapour lock? Why?

Subject: Re: Europa-List: Vapour lock? Why?
From: Frans Veldman <frans@privatepilots.nl>
Date: Tue, 31 Jul 2012 22:57:01

On 07/31/2012 07:50 PM, klinefelter.kevin@gmail.com wrote:
> I have the same system Paul describes. I have not experienced the
> problem Frans had. But I operate consistently at far higher density
> altitudes and temps than described.

This is interesting. I think I have the same system as Paul and you
(With the Andair gascolator) except that I have an additional disposabel
filter for the secondary fuel pump. We are talking here about the series
configuration, right?

> Frans, perhaps you are on to something regarding the filters before the
> pumps causing vaporization of the auto fuel at high density
> altitude/temp, and perhaps that is the part of the system that is need
> of redesign.

Well, it could be that the fuel filters are contaminated (although I
cleaned/replaced them just 40 hours ago) causing enough restriction in
harsh conditions but not enough to cause a fuel pressure drop at lower
temps/altitudes. Or I just had a bad batch of fuel.

I will check the system thoroughly and see if I can find any abnormalities.

Frans



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