Interesting Motor Discovery-OS1.60

[Verne Koester]

Bob,
This may sound a little crazy, but I learned in the old piped-60 days to store my 2-cycles with the piston as high up in the cylinder as possible. The logic was to close off the exhaust port from all the nitric acid fumes in the exhaust system. The fumes seemed to be worse in a piped system for whatever reason. Sounds crazy, but it worked for me.

Verne
  ----- Original Message ----- 
  From: Bob Pastorello 
  To: NSRCA 
  Sent: Saturday, April 17, 2004 3:25 PM
  Subject: Interesting Motor Discovery-OS1.60


  Finally got around to getting the Wagstaff Extra airworthy, after not being run for the winter.  Felt rough, so tore it down.  Bearing was not really bad, although a little rust was present (wasn't a SS bearing).  Upon investigation, noting the serious lack of compression, I proceeded to replace the bearing.
      While the piston was out, of course I cleaned it....lo and behold...RING rusted SOLID in the groove.  After careful working with my Amsoil spray, it freed, and I cleaned the groove.
      What was interesting was oil on top of the cylinder, and on the cylinder wall (not a lot, but a film was there)...and the side of the piston around the ring groove was bone dry.

  Fixed it all up, ran like a top, very smooth - so shoudl be good to go.  I have never seen a ring stuck like this before, and just thought I'd share the tale in case anyone runs into inexplicable roughness and low compression....

  Bob Pastorello
  rcaerobob at cox.net
  www.rcaerobats.net

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