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steel sleeve boring with hone, possible?


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I have a 1985 cr250 cylinder with a steel sleeve, there is some corrosion (from sitting off a bike for a while) so it certainly needs to be honed. I have a 1 over piston on my shelf I could put in it. Would I be able to use a hone to bore this out? One engine shop I called about boring my xr80 said he would do it with a hone, but then I took it some place else so they could machine it instead.

What I am thinking is that with the porting you would get different pressures applied by the hone and you might get an oval bore at the bottom.

Anyone try this?

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The way it is supposed to be done is that the cylinder is bored slightly undersized and then honed to the final dimension. The honing process is for removing tenthousandths of an inch, not the tens of thousands of an inch difference required to make it to the next oversize. You'll be running the hone through the cylinder for a week before you open it up enough. Take it to the machine shop, it should cost $60-90 to have the cylinder bored.

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