After run Oil

[John Ferrell]

I flew my YS120 powered Goldberg Extra 300 today for the first time in over a year. I had to manually free the lifters up and when I opened the valve cover there was enough clean oil to pour out. I never even bother to run the engine out. The fuel is Red Max 20% Sport mix. 

John Ferrell
6241 Phillippi Rd
Julian NC 27283
Phone: (336)685-9606
johnferrell at earthlink.net
Dixie Competition Products
NSRCA 479 AMA 4190  W8CCW
"My Competition is Not My Enemy"
 

  ----- Original Message ----- 
  From: Bill Thompson 
  To: discussion at nsrca.org 
  Sent: Monday, November 17, 2003 7:48 PM
  Subject: Re: After run Oil


  Terry
  What you just said is what I have been doing since the late 80's. I asked the question because three or four people told me that I am killing my engine's. I replaced my bearings after over 200 flights no rust and just like you said it was to make me feel better. I am running 25% Cool Power synthetic. Thanks for your help.

  Bill Thompson
  AMA 7703 
    ----- Original Message ----- 
    From: Terry Brox 
    To: discussion at nsrca.org 
    Sent: Monday, November 17, 2003 6:27 PM
    Subject: Re: After run Oil


    Hi Bill,
            You will get a wide range of opinions on this. The main difference will be whether or not to use any, and if not, whether or not to run the engine dry. 
             I never use after run, however, performance specialties sell an after run that will not harm the internals of the engine. DO NOT USE A PETROLEUM BASED PRODUCT OF ANY KIND.
             I run Cool Power heli fuel and run the engine dry after flying. I never have replaced bearings because of need. I have replaced the bearings just to "make me feel better" but they seemed fine. When I rebuild a YS, the inside is full of oil, even though I run it dry after flying. When running it dry, only the part of the fuel that burn will run out, leaving a good bit of oil still in the engine.

              Hope this helps get the thread started, good luck, Terry
      ----- Original Message ----- 
      From: Bill Thompson 
      To: discussion at nsrca.org 
      Sent: Monday, November 17, 2003 4:06 PM
      Subject: After run Oil


      What is the best after run oil should I use in my YS engines ?

      Bill Thompson
      AMA 7703
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