Jeff,
You and I seem to have similar situations, though under slightly
different circumstances. I used to smell fuel, on occasion, when the
engine was still breaking in. CHT was running at 275 and I could really
tell the engine was warmish. Also noticed fuel stains under the air
box, where the drains were. Starboard carb seemed to be getting the
bulk of the heat from the exhaust, so I fabricated a small stainless
shield that I bolted up to the head, just over the exhaust pipe. That
solved the heat problem for the carb. Once the engine was broken in
(approximately 100 hours) the CHT stabilized at around 220. Oddly
enough, the fuel smell went away, too. I do not have the skydrive units
on Baby Blue...
Jeff - Baby Blue
210 hours - Guess I'm waiting for the regulator to go, now... ;)
JEFF ROBERTS wrote:
>
> 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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