[NSRCA-discussion] OS 120 Ax bearing replacement

[Ron Lockhart]

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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