RCU Forums - View Single Post - How important is the break in procedure?
Old 06-04-2011 | 06:50 AM
  #133  
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Broken Wings
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Default RE: How important is the break in procedure?

ORIGINAL: DarZeelon


ORIGINAL: PlaneKrazee

I always thought a heat cycle type break-in would stress relief parts and do a final microscopic polish of mating surfaces.
PK,


As I wrote earlier, the first part of your post; heat treating does not take place at the temperatures the parts of the engine attain during break-in. So it would not be wise to expect them to be stress-releaved to any degree.

The muutal polishing of the moving parts does happen; so sealing is optimized and friction minimized.
http://www.pmpco.com/annealing/annealing.html

http://www.riheattreating.com/heat-t...ecialties.html

http://www.tristateflame.com/annealing.htm

Do the temperatures in our engines not reach 300 degrees as you posted?

Here.. http://www.rcuniverse.com/forum/fb.asp?m=10551179

It's a shame when facts get in the way of a good argument...

I apologize if I've upset you.