Today's Message Index:
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1. 02:27 PM - read this spark plug - slightly OT (DJ Vegh)
2. 06:34 PM - Continental A65 Mixture Control & Absolute Ceiling (Rcaprd@aol.com)
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| Subject: | read this spark plug - slightly OT |
--> Pietenpol-List message posted by: "DJ Vegh" <djv@imagedv.com>
can anyone who has plug reading experience tell me anything about this plug.
It's from a 2 cycle engine running 30:1 oil mix on Naptha White Gas (Coleman
camping fuel)
www.azchoppercam.com/plug_large.jpg
thanks
DJ
Message 2
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| Subject: | Continental A65 Mixture Control & Absolute Ceiling |
I'm installing a mixture control on my Stromberg NAS3A1 carb, in order to
fly up at some higher altitudes. I'm also installing EGT and CHT
instruments.
What MSL altitude can I begin leaning out the Mixture ?
What is the Absolute Ceiling of a Pietenpol ?
What's the highest any of you guys have ever been to ?
Any other suggestions about taking 'er up into the thinner air ?
Might I get too close to the sun ?
The book calls it the Altitude, or Mixture control, and says that when in
flight, the mixture control can be leaned out Only when a higher rpm can be
obtained. Otherwise, set it back to Full Rich.
This carb has what's called the 'Back Suction Type' mixture control.
There is a disk that has a graduation of progressively smaller holes as it is
leaned, which directs air from the float chamber to the venturi suction. I plan
on having a detent for the cable, that will stop the disk directly over the
opening.
Chuck Gantzer
NX770CG
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