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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