Fuel/Water, Bearing/Rust

[Bob Pastorello]

Ya got me, Dwayne.  I missed that one.
    Interesting stuff.  And MK/Tettra tanks come with Aluminum tubing...and many pumped motors have non-brass fuel inlet attachments....hmmmmm

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


  ----- Original Message ----- 
  From: Dwayne & Nancy 
  To: discussion at nsrca.org 
  Sent: Thursday, December 04, 2003 6:42 PM
  Subject: RE: Fuel/Water, Bearing/Rust


  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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