Fuel/Water, Bearing/Rust

[Bob Pastorello]

Also, most clunks I've seen lately aren't brass-looking.  They apparently
are plated and look shiny-brite metal.  I've drilled some of them, to find
they're brass underneath.  So that sort of begs the question, WHY would fuel
tank manufacturers add the expense of plating a KLUNK ??
    My Mintor setup has no brass that I can see; it will be interesting to
see how this goes.  Has an MK tank, aluminum tubes, nylon tees in lines.
Plated clunk in the tank.

Bob Pastorello, Oklahoma
NSRCA 199, AMA 46373
rcaerobob at cox.net
www.rcaerobats.net


----- Original Message ----- 
From: "Brian Young" <b4598070 at yahoo.com>
To: <discussion at nsrca.org>
Sent: Friday, December 05, 2003 7:45 AM
Subject: RE: Fuel/Water, Bearing/Rust


> Cant remember if the fuel needed the water in it to
> break down into acetic acid..anyone recall?   ;0
>
> I have had older brass clunks corrode the nipple off
> at the end of the tubing.....I have noticed the little
> green brass particles plugging up the ports on some of
> my engines....always wondered why they used the brass
> for this stuff. I use plastic or aluminum if I can,
> and steel clunk if available.
>
>
> --- Dwayne & Nancy <dwaynenancy at cox.net> wrote:
> > Bob, Joe said that blaming water in the fuel as the
> > cause of bearing
> > rust was a "folk tale".  The cause was the fuel
> > decomposing into acetic
> > acid (vinegar).  The decomposition is caused by the
> > catalytic effect of
> > the brass components inside the fuel tank.  Joe
> > tried leaving bearings
> > in several brands of fuel for four months without
> > any rust forming.  You
> > should read the magazine more carefully.  You can't
> > tell when something
> > valuable with show up.  <VBG>  Dwayne
> >
> > -----Original Message-----
> > From: discussion-request at nsrca.org
> > [mailto:discussion-request at nsrca.org]
> > On Behalf Of Bob Pastorello
> > Sent: Thursday, December 04, 2003 8:25 PM
> > To: discussion at nsrca.org
> > Subject: Re: Fuel/Water, Bearing/Rust
> >
> > Okay - Matt - since my MA already found it's way to
> > the shredder....
> >     WHAT did he say about rust protection?
> >
> > Bob Pastorello, Oklahoma
> > NSRCA 199, AMA 46373
> > rcaerobob at cox.net
> > www.rcaerobats.net
> >
> >
> > ----- Original Message ----- 
> > From: Rcmaster199 at aol.com
> > To: discussion at nsrca.org
> > Sent: Thursday, December 04, 2003 6:11 PM
> > Subject: Fuel/Water, Bearing/Rust
> >
> > The diatribe of the last week or so on this list has
> > been, shall we say,
> > rather........ interesting, (except for the news
> > about Kirk Gray, that's
> > plain sad). It's time for something new.
> >
> > In this month's Model Aviation, Joe Wagner talks
> > about experiments he
> > has run with a trusty old engine. He ran baseline
> > performance data with
> > his regular fuel and then he added water in his fuel
> > to see how badly
> > performance would be affected. His results where
> > very interesting. Shall
> > we say that he made chopped meat out of that "sacred
> > cow".
> >
> > He also briefly touches on what really is the root
> > cause of bearing
> > rust. Even the uninitiated should find that
> > interesting. Could a
> > solution to all of your OS bearing woes be this
> > simple?
> >
> > There, that ought to whet your whistle.
> >
> > Matt K
> >
>
>
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