Re: Fuel system changes

[LTS <lts@avnet.co.uk>]

As a long time user of unleaded 95 in aircraft I have to say that I have
flown well above 5000' in ground temperatures far above 20 deg C. I avoid
SUPER unleaded like the plague as I believe it has more volatiles and will
be more prone to vaporisation. In France SUPER unleaded is the norm and
indeed at the BLOIS microlight rally for example there was a guy there
flogging it by the can full. AVGAS is far less prone to vaporisation but its
high lead content is enough to put me off. In Sweden ( I think but maybe
Norway ) I have been told they have proper unleaded Avgas which is also
relatively inexpensive. Lets hope we get it here as it would solve the
vapour problem and the lead clogging problem.

Jerry
                      LTS@avnet.co.uk
           www.avnet.co.uk/touchdown
----- Original Message -----
From: "Bob Harrison" <ptag.dev@ukonline.co.uk>
<europa@avnet.co.uk>
Subject: RE: Fuel system changes


> Hi! Barry.
> In your disturbing experience were you on Mogas or 100LL and do you have a
> return to tank system?
> You probably don't need me to tell you that the Ambient Mogas limit is
> around 20 deg.as well as about 5,000 ft.?
> Regards
> Bob Harrison G-PTAG  Europa Kit 337/Jabiru 3300
>
> -----Original Message-----
> From: owner-europa@post.aviators.net
> Subject: Re: Fuel system changes
>
>
> I went flying yesterday for the first time in about 2 months.
>
> On a very hotday in August(36degC)I landed at a grass field in the Eifel
> mountains in Germany.
>
> I was forced to taxi around a lot in long grass before takeoff and as
> soon as I was in the air I knew it was a bad idea!! The engine was
> running rough and when asked for full power would cut out on 2
> cylinders.
>
> I managed to return to the field and made a safe landing.
>
> I put it down to vapour lock - everything under the cowling was
> extremely hot.
>
> I was picked up with the trailor and at home I tried some full power
> runs. Same effect!!
>
> I fitted a clear plastic pipe to the feed to one carb and found about
> 20% air in the fuel flow. I isolated the problem to the pipes under the
> cowling.
>
> All the fuel lines have now been changed and the carbs cleaned and re
> adjusted and the plane flies like new!
>
> I dont know exactly what the problem was but I suspect that the original
> fuel lines had become porous as I can see cracking on the ends of the
> pipes. I also fitted pipes without the metal armour to be better able to
> see any weeping in the future.
>
> It was a scary experience and I am putting the clear plastic pipe check
> for air in my 100 hpur check list.
>
> Best regards
>
> Barry Tennant
> D-EHBT
>
>
> tonyk@kaon.co.nz schrieb:
> >
> > >>>> Four engine failures.  ( All Military)  All landed.
> >
> > I'll rephrase that... how many people fly Europas have _actually_ had a
> fuel
> > problem [in the Europa].
> >
> > Tom,  I'd have given up flying military aircraft after the fourth engine
> > failure :-)
> >
> > Tony
>
>