OS 140 Bearings

[Jerry Budd]

If interested, I have stainless steel bearings available for the 
OS140 on my website:

http://www.buddengineering.com

They're listed under products/engine bearings.

Thx, Jerry


>Steve,
>Where do you get your replacement bearings?
>How often do you change rings and pistons?
>Rodney
>NSCRA 2906
>
>
>
>
>
>--- flyboy422 at juno.com wrote:
>>  Verne,
>>
>>       If you can stand one more take on the OS piston
>>  I'll share my
>>  experience.  I have been flying OS 140's for 3 years
>>  which means I have
>>  been changing bearings at least twice a year.
>>  Everything that has been
>>  written on the list regarding the wrist pin is
>>  correct.  The method I use
>>  for the bearing is as follows:  Perheat your oven to
>>  500 degrees.  Clean
>>  as much fuel off the case as you can.  Put the case
>>  in the oven for 30
>>  minutes.  When you open the oven door, the bearing
>>  will be out of the
>>  case.  If  you are not this lucky, it will only take
>>  a slight rap to
>>  finish the job.  Put the new bearing(stainless) in
>>  the freezer for the
>>  same 30 minutes.  I remove any shields from the
>>  bearing.  They only will
>>  restrict lubrication.  Put the bearing onto the
>>  crankshaft and insert
>>  into the case.  I know you'll know what to do next.
>>
>>         I suggest you use only stainless bearings and
>>  expect to get about
>>  100 runs out of it.  The early warning sign of wear
>>  will be a slight
>>  rocking of the prop when the engine is hot.    Once
>>  that starts you have
>>  about 10 flights left.  I use after run oil
>>  religiously.  Good luck and
>>  I'll see you at the Nats.
>>
>>  Steve Miller
>>  =====================================
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>>
>
>
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-- 
___________
Jerry Budd
mailto:jbudd at qnet.com
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