[NSRCA-discussion] OS 120 Ax bearing replacement

[george w. kennie]

Eric always seems to have a bottomless source of fabulous corrective ideas.
I'm saving that one!
G. 
  ----- Original Message ----- 
  From: Grow Pattern 
  To: NSRCA Mailing List 
  Sent: Thursday, May 31, 2007 12:33 PM
  Subject: Re: [NSRCA-discussion] OS 120 Ax bearing replacement


  John,
            You can clean the wrist pin while it is in the engine by threading a loop of Dental-floss around it and puling back and forth on each end at the same time.

  Quick and easy once you have done the threading but :-)

  Regards,

  Eric.
    ----- Original Message ----- 
    From: Ron Lockhart 
    To: NSRCA Mailing List 
    Sent: Thursday, May 31, 2007 8:51 AM
    Subject: Re: [NSRCA-discussion] OS 120 Ax bearing replacement


    If con rod is stuck on wrist pin, you can try laying engine on it;s head, and filling piston with laquer
    thinner to help disolve goo on wrist pin.  After a days soak, it might move further.
    Ron Lockhart
      ----- Original Message ----- 
      From: Ron Van Putte 
      To: NSRCA Mailing List 
      Sent: Wednesday, May 30, 2007 11:13 PM
      Subject: Re: [NSRCA-discussion] OS 120 Ax bearing replacement


      I don't know about that motor, but on many motors you have to remove the sleeve so you can get the piston/con rod assembly to move enough toward the back of the motor to get the con rod off the crankshaft. 


      Ron Van Putte


      On May 30, 2007, at 7:23 PM, John Pavlick wrote:


        Has anyone replaced the bearings in their OS 120 Ax? What's the trick? I've done plenty of bearings but this one is different. After removing everything, including the sleeve, I can't slide the rod far enough back to get it off the crankpin. The pin boss in the piston is too narrow to allow the rod to slide far enough. If anyone has done this already I'd appreciate any insight. Thanks!

        John Pavlick
        http://www.idseng.com






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