Tim,
That is what I thought, but it is actually not true.
When on the ground, and you have a long taxi run, especially on a grass
field and/or on a very hot day, the hot coolant will cause the fuel to boil
in the carburator bowls. You can easily verify this by looking at the clear
carb vent tube through the stbd cowling door, and you will see the fuel
bubbling up into the airbox. You will not be able to start your engine at
this stage as the carbs are flooded. I've proven it by putting a clamp on
the coolant hose to stop circulation. The local Rotax agent educated me
about the Skydrive. He also claims that because the added collar moves the
carburator further from the engine, it contributes to vibration problems.
And lastly, I don't believe that hot air and hot fuel going into the
combustion, does not affect engine performance. You have a 914, so you
wouldn't know.
Best regards,
karl
>From: "Tim Ward" <ward.t@xtra.co.nz>
>Reply-To: europa-list@matronics.com
>To: <europa-list@matronics.com>
>Subject: Re: Europa-List: Skydrive on/off control
>Date: Sun, 3 Sep 2006 13:45:58 +1200
>
>
>Karl,
>Just keep the carb heat on all the time, no performance penalty. Having a
>switch is just another thing to go wrong and fix!
>Cheers,
>Tim
>Tim Ward
>12 Waiwetu Street,
>Fendalton,
>Christchurch, 8052
>New Zealand
>
>Ph +64 3 3515166
>Mobile 021 0640221
>ward.t@xtra.co.nz
>----- Original Message ----- From: "Karl Heindl" <kheindl@msn.com>
>To: <europa-list@matronics.com>
>Sent: Sunday, September 03, 2006 12:20 PM
>Subject: Europa-List: Skydrive on/off control
>
>
>>
>>
>>
>>Does anyone know of an inline valve, controlled electrically, for
>>controlling the coolant flow in the Skydrive carb heater ?
>>I know they exist for central heating systems, but are the wrong voltage.
>>
>>thanks in advance,
>>
>>Karl
>>
>>
>>
>>
>>
>>
>>
>
>
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