Guys,
Before blaming the carb heater for the fuel smell, why not be 100 % sure
before adding mods. Just disable the coolant flow by putting a clamp on one
hose for one or two test flights, and get the engine nice and hot.
I have fuel smells, too. But in my case one source is the old hoses, some of
which I will change at the next annual.
Karl
>From: JEFF ROBERTS <jeff@rmmm.net>
>Reply-To: europa-list@matronics.com
>To: europa-list@matronics.com
>Subject: Re: Europa-List: Skydrive on/off control
>Date: Sun, 3 Sep 2006 21:24:07 -0500
>
>
>Tim,
>Actually I do smell fuel once in a while. I don't remember seeing any fuel
>stains but I may take the cowl off and look closer now. I have a small fuel
>valve that I didn't use so maybe that would work for turning the hot water
>off. Would now like to hear what others have used for the job.
>Jeff
>A258. Flying off the 40 & maybe another bug just found me. Thanks Guys ;(
>
>
>On Sep 3, 2006, at 2:43 PM, Tim Ward wrote:
>
>>
>>Jeff,
>>Do you have any fuel smell problems?
>>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: "JEFF ROBERTS" <jeff@rmmm.net>
>>To: <europa-list@matronics.com>
>>Sent: Monday, September 04, 2006 4:09 AM
>>Subject: Re: Europa-List: Skydrive on/off control
>>
>>
>>>Karl,
>>>I use the Skydrive system on my 912-S and leave it on all the time. We
>>>haven't had any problems here in the USA mid south at 95 + degrees all
>>>summer. I have very long taxies at MQY. When the motors hot and I need to
>>>re-start, a little throttle as soon as you crank it and it takes off
>>>every time.
>>>Just my two cents,
>>>Regards,
>>>Jeff
>>>A258 Gold Rush 33.5 hrs of flying off the 40 and all the bugs seem to be
>>>gone ;)
>>>On Sep 3, 2006, at 6:09 AM, Karl Heindl wrote:
>>>>
>>>>
>>>>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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