REFLECTOR: Running LOP

[Dave Philipsen]

Mack,

If you've been reading any of Deakin's articles, here are a few excerpts 
from Pelican's Perch #55,  "Lead in the Hogwash":

Lead does NOT "cushion" or "lubricate" valves. There is nothing in the 
serious literature, and no known scientific data to support this notion. 
If you know of something, please write. I said DATA, not some mechanic 
or overhauler mouthing this decades-old gossip. Remember, EVERYONE once 
"knew" the world was flat (and some still believe it). I do have one 
report that high-output marine engines had some valve problems when 
switched from mogas to unleaded fuels, but that same report said that 
hardened valve seats took care of that problem.

Lead does NOT cause valves to run cooler or hotter. Lead does NOT 
prevent (or cause) "valve recession."

Lead is not "good" for an engine, IT IS HARMFUL to engines. But if you 
want high performance from an engine, it is the least toxic of the 
presently known chemical additives that will allow high power without 
detonation.


MMurp16900 at aol.com wrote:
> subject LOP
> Hi Scott
> I did read that one reason some operators run EGT 25/50 rich side 
> is so the leaded fuel helps to lubricate  the valve seats.
> What is your opinion
> Mack
> .
> ------------------------------------------------------------------------
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

-- 
Dave Philipsen
Velocity STD-FG
N83DP