| A NON GMCMH Question for Ken Burton [message #162688] |
Sun, 11 March 2012 19:28  |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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Ken, is there such a thing as unleaded Aviation gasoline available in North America ?
Is there a web page somewhere that lists what aviation gasolines are available in North America ?
Asloing for my 4th year University Aero Space Engineering son. He couldn't find this info. Don't know how or where he looked.
ThANKS,
dave king
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
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| Re: A NON GMCMH Question for Ken Burton [message #162696 is a reply to message #162688] |
Sun, 11 March 2012 21:10  |
LNelson
Messages: 335
Registered: December 2008
Location: Springfield, MO
Karma: 0
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I am not Ken but I will answer that I am unaware of unleaded avgas. There are some experimental fuels in development but I am not aware that anything has hit the pump. On one of my planes, I can use unleaded mogas which thankfully is still available in Missouri (in premium).
The tree huggers want to end the production of 100 LL. I have hugged a tree or two in my life, but this is ridiculous.
Larry Nelson Springfield, MO
Ex GMC'er, then GM Busnut
now '77 Eleganza ARS WB0JOT
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| Re: A NON GMCMH Question for Ken Burton [message #162718 is a reply to message #162696] |
Sun, 11 March 2012 23:22 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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same answer here. I have never seen unleaded aviation gasoline anywhere i the last 45 years. We have had 80, 87, 93 or 94, 100, 100LL, 115, and 130 octane fuels that I know of over the years.
I just read a manual on a 1946 airplane the said the engine requires 73 octane minimum.
Anyway, all of the AV gasoline I have seen all had lead. As the octane number increased, so did he amount of lead.
It is a big problem for us now because all we can get is 100LL (low lead). Low lead is a poor description. It is lower lead that regular 100 but for us with lower compression engines it is a major problem. It has 4 times the lead as 80/87 octane AV fuel. The excess lead ends up in little bb type things shorting out the plugs. Then you have to remove the plugs and pick out the lead. A lot of us now use 100% 87 octane auto fuel WITHOUT ALCOHOL. Some use a mix of 87 auto fuel with a little 100LL AV gas added to it.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] A NON GMCMH Question for Ken Burton [message #162782 is a reply to message #162768] |
Mon, 12 March 2012 19:14 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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We assembled a LOT of flat moptors at Mack's using that same elixir as aaembly lube. Neveb had a startup lube problem with one.
--johnny
'76 23' transmode norris
'76 palm beach
________________________________
From: Larry Nelson <larrynelsonarchitect@mchsi.com>
To: gmclist@temp.gmcnet.org
Sent: Monday, March 12, 2012 5:02 PM
Subject: Re: [GMCnet] A NON GMCMH Question for Ken Burton
Ken, our round engine folks (might) use a magic elixir from a red bottle that is believed to be a lead scavenger. If it is, and I am not saying one way or the other, it might solve a "mystery".....for now at least it certainly is a "marvel". :twisted: :twisted:
--
Springfield, MO
Ex GMC'er, then GM Busnut
now '77 Eleganza ARS WB0JOT
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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