I'm confused!  Did the Alons have a different fuel system than the
Ercoupes?  It is
my understanding that with a gravity feed system, you cannot have a vapor
lock
condition.  Fuel flows down, and fumes flow up.  Correct me if I'm wrong.

Larry

G/F Alon S/N149 wrote:

> >  Like Wayne, I have never had a problem with vapor-lock, or the engine
> quitting in my Alon in my eight years of ownership.  Although there was
an
> ATC approval for using auto fuel in my airplane when I bought it, I
chose
> not to use it. Why?  I have heard stories of other airplanes having
> vapor-lock problems when using auto gas.  Notably, these were Cherokee
140s
> and Cessna 152s.  Flying is not a cheap sport.  This should be realised
> going in. Cutting corners by using automotive oil, automotive fuels and
> non-approved parts, in my mind, is penny wise, dollar foolish and is
> courting disaster!
> George Frebert
>
> On Fri, 14 Apr 2000 14:13:04 -0700, [EMAIL PROTECTED] wrote:
>
> >  Folks,
> >
> >  There is a service bulletin on the Alons to modify the fuel system to
> avoid
> >  potential vapor lock problems.  This may be the problem that John
Wright
> was
> >  talking about.  I have heard of a few instances of Alon engines
quiting
> due
> >  to vapor lock.  The guy that I bought mine back from had it happen to
> him.
> >  Luckily he was able to put it back down on the remaining runway.  He
then
> had
> >  the modifications described in the service bulletin done on the
plane.  I
>
> >  flew this same plane for about 300 hours before the mods were done (
when
> I
> >  owned it 15 years ago) but I never had any problem with vapor lock.
I
> don't
> >  know if he had the vapor lock with auto fuel or avgas.  The plane is
> STC'd
> >  for auto gas, but I never use it.
> >
> >  Did anyone happen to get a tape recording of the Coupe forum at Sun n
> Fun??
> >
> >  Wayne DelRossi
> >  Alon N5618F
> >
>
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