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Fordiesel69

Cylinder Cross Hatching / Hone

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Fordiesel69

Question for you folks.  I have rebuilt quite a few kohler K series, and a bunch of 2 strokes over the years.  What I have noticed is that whether I do the honeing or if I let a machine shop do it after boring, the cross hatch seems to go away very fast after running the engine.  So it would be safe to assume that after a year of use my tractor would have virtually no cross hatch left whatsoever.

 

So why is my cross hatch pattern going smooth when I take all the precautions?  New air filters, new oil at 5 hrs, then 15, then 25...... but the factory cross hatch seems to stay?

 

I recently decarboned an M12 (534 hrs) and an M14 (255 hrs) and there was a ton of cross hatch.  See here:

IMG_3189_zps979b1628.jpg

 

 

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buckrancher

what grit are you honing with . should be around 240

and the crosshatch should go away as the cylinder breaks in

 

Brian

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