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Re: RE : Europa-List: Carb Icing

Subject: Re: RE : Europa-List: Carb Icing
From: Duncan McFadyean <ami@mcfadyean.freeserve.co.uk>
Date: Fri, 21 Jan 2005 22:10:33

I seem to have hot start problems at carb temps. above about 35C; what
'threshold' have you experienced (other than somewhere above 50C)?

Duncan McF.
----- Original Message -----
From: "Terry Seaver" <terrys@cisco.com>
Subject: Re: RE : Europa-List: Carb Icing


>
> We have had problems with hot starts on hotter days, you could smell the
> gas getting boiled out of the carbs.  Starting was difficult until the
> engine cooled down (we learned to watch the carb heat gauge).  Turning
> off the carb heat immediately after exiting the runway helped a lot with
> the hot starting.  By the time we got back to the hanger, the carb heat
> would be down to nearly ambient, vs well above 50 degC if the carb heat
> is left on (the carb heat gauge does not register about 50 degC).  We
> normally run auto gas, which may make the problem worse because of its
> lower vapor pressure/boiling temp compared to 100LL.
>
> Terry
>
> JEFF ROBERTS wrote:
> >
> > Like so many others I didn't fit a tap. Thought leaving it on couldn't
> > hurt anything. Does it need to be off for a hot start?
> > Jeff
> > A258
> >
> > On Jan 21, 2005, at 11:19 AM, Terry Seaver wrote:
> >
> >
> >>
> >>The 912S with XS cold air plenum can DEFINITELY get carb ice, don't
> >>doubt it for a moment, both on the ground and in the air.  The Skydrive
> >>carb heat clears the ice quickly once turned on.  We only turn it off
> >>when we expect to do a hot start after a flight, letting the carbs cool
> >>on the taxi to the ramp after landing.
> >>
> >>Terry Seaver
> >>A135 / N135TD
> >>
> >>NEEL Jean Philippe wrote:
> >>
> >>><jeanphilippeneel@yahoo.fr>
> >>>
> >>>No doubt: every system works!
> >>>Why?Because I think 912 does not know carb icing. 600h flying in the
> >>>alps in summer and winter I never had icing troubles  at low descent
> >>>rate (1000ft/min max and 4000rpm mini.)
> >>>I am afraid there is often confusion beteewn carb icing and misfiring
> >>>or fuel alimentation .
> >>>May be that's not true for 912S
> >>>Jean Philipppe
> >>>
> >>>
> >>>mau11 <mau11@free.fr> wrote:
> >>>
> >>>Hello,
> >>>I know this system, the big problem is the permanent upload charge of
> >>>electrical network during service 60w.
> >>>
> >>>Personnaly I use Skydrive since 250 hours (I am very happy)and the two
> >>>main advantage are:
> >>>1 no electrical consumption
> >>>2 Permanent service (I had a valve into the cowling for shut down but
> >>>I
> >>>never used)
> >>>
> >>>Monowheel N145
> >>>
> >>>--|--
> >>>--------(*)--------
> >>>
> >>>Michel AUVRAY
> >>>
> >>>
> >>>-----Message d'origine-----
> >>>De : owner-europa-list-server@matronics.com
> >>>[mailto:owner-europa-list-server@matronics.com] De la part de Carl
> >>>Pattinson
> >>>Envoy : vendredi 21 janvier 2005 00:26
> >>>: europa-list@matronics.com
> >>>Objet : Europa-List: Carb Icing
> >>>
> >>>
> >>>-->
> >>>
> >>>I recently commented on the Skydrive vs the ST Aviation carb heater
> >>>option.
> >>>
> >>>Here is the link for the ST version. There is a photo showing how it
> >>>is
> >>>fitted.
> >>>
> >>>http://www.jabiru.co.uk/IceEliminator.htm
> >>>
> >>>
> >>>
> >>>---------------------------------
> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
> >
> >
>
>




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