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--- [EMAIL PROTECTED] wrote: > ----[Please read http://ercoupers.com/disclaimer.htm > before following any advice in this forum.]---- > This sounds like a case of CHIA COUPE not good.In the summer you might need someone to trim around the gas caps :) Dennis 99564 in ILL > Leslie, > > I used Mogas for about 15 years...from the first > approval by EAA. However, > when my situation changed to very little use of the > airplane, I ran into a > problem I have not discussed with EAA. > > On one filling of fuel I noticed a tar like > odor...or maybe better - a fuel > oil odor to my gasoline. I didn't pay much attention > - thought , well maybe > the separation was not as good as desired. ( > Gasoline and all petroleum > products are shipped thru pipelines; and at the > destination storage facility, > they separate out a portion of the fuel slug so as > to assure purity of the > fuel stored. ( The seperated slug of fuel/oil > mixture is re-refined and sold > back to the industry). > > Evidently the separation on my refill was not > accomplished as desired, thus > the odor, but I had little concern. This was a > serious mistake. It probably > would have made little if any difference in > performance, etc, if I was flying > regularly and refueling frequently, etc.. BUT, the > coupe was sitting mostly, > and very little fuel used on run-ups, and fast > taxiing. > > After a while, I began to get green goo in my sump > checks......and later grew > a green paste on the inside of my fuel caps...I sent > a sample to Amoco, and > they refused to even consider the "problem".... > > I never did look at the mess under a microscope to > assure it was algae....tho > I am 99.999% sure that was the problem. Algae grows > in fuel oils, jet fuels, > etc....and an algicide is added to jet fuel to > prevent its growth. (Prist). > > I understand that Leaded fuels are poisonous to the > algae, ...So, we don't > see the problem in aviation fuel..., or in > automotive high use situations > where any small growth is filtered out and/or > burned. > > BUT, my coupe sat for long periods of time, giving > the algae a perfect > environment to grow..... > > After cleaning the system, adding prist, cleaning > the system many times, and > reverting to 100 LL, it seemed I had rid myself of > the green goo....or so I > thought. > > John Wright, Jr, is restoring my coupe, and recently > had a look at my header > tank.....and wondered what the GOO was in the > bottom of the tank. It appears > the goo was algae that had died, but still was a > slug of mess in the header > tank.....material that did not flow thru to the > gascolater... Sure am glad he > trucked the coupe to John's shop, instead of me > flying it out there on a > ferry permit. > > I have not shared this with EAA, but will do so. I > think it is of real > concern for airplanes that are not used on a regular > basis...the possibility > of a slight contamination of fuel oil and growth of > algae.... > > Perhaps a mixture of 100 ll and Mogas would be > suitable...lower lead for the > little Continentals, and sufficient lead to kill the > algae.....? > > Regards, > > Harry Francis > Blacksburg, VA > N-93530 > > > __________________________________________________ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com ==^================================================================ This email was sent to: [EMAIL PROTECTED] EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiLm.aVzvvT Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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