R.      

Berni <bbreen@cableone.net> wrote:

>I have received a few responses that point to heat as a potential culprit.  To date I have been reluctant to believe this is the cause as my airframe/engine/fuel systems have over 1000 hours of flight time with zero previous symptoms such as fuel pressure, fuel flow and engine surging.  Since I have come up with any other cause. I am going to look at this as a potential cause.
>
>I will continue to update the list as I pursue a remedy.  In the meantime I welcome any and all suggestions.
>
>Berni Breen
>Sent from my iPhone
>
>On May 25, 2011, at 6:41 AM, "Steve Colwell" <mcmess1919@yahoo.com> wrote:
>
>> Berni,
>>
>> My first response to your problem was a quick copy and paste of my post when
>> I was having the same symptoms. I hope it made sense. Consider the
>> recommendations I quoted from Continental, Cirrus and Advanced Pilot
>> Seminars to run the low boost pump above 10,000'. Temperature under the
>> cowling, fuel temperature and density altitude are all factors.  If your
>> firewall fuel line routing or temps are just a little higher than some other
>> applications it could easily cause your problem.  My Legacy has 1/2" fuel
>> line all the way to the Gascolator and a engine pump shroud (from Lancair)
>> with a blast tube and I still had the problem.  Low Boost solved it for me.
>>
>>
>> Steve Colwell  (recent Barrett engine running great)
>>
>>
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