OS Piston Pin

[Verne Koester]

Troy,
Thanks, I'll try it. Never thought it would work after seeing the groove machined into the crankcase for connecting rod clearance.

Verne
  ----- Original Message ----- 
  From: Troy Newman 
  To: discussion at nsrca.org 
  Sent: Tuesday, July 01, 2003 11:07 PM
  Subject: Re: OS Piston Pin


  Don't have to remove the piston from the wrist pin to get the piston, and con rod out for removal of the crank....Just takes a little patience....Its not like a YS.....it will come apart....Try going to bottom dead center and just slide the con rod back and off the crank pin....Viola its off....Goes back together the same way. Its a little tough but things are sized to allow for the removal of the piston and conrod as a unit. Just like a .46 or the .61's

  Its cake after the first time.

  I doubt you will ever get the wrist pin out of the motor via the exhaust port....But then again other guys have seemed to do some pretty weird stuff with motors....


    ----- Original Message ----- 
    From: Verne Koester 
    To: NSRCA 
    Sent: Tuesday, July 01, 2003 10:56 PM
    Subject: OS Piston Pin


    Anyone know how to get the piston pin out of an OS 1.4RX? Working through the exhaust port, I got the circlip out but the pin seems to be stuck pretty good. I thought I read where the id of the pin was threaded but it doesn't SEEM like it is. Can't see in there real well but the id feels pretty smooth. I want to replace the rear bearing before the Nats to avoid any possible problems.

    Thanks,
    Verne
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