a note to be careful in porting




Frankenstein

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#3
Practice on some scrap aluminum, those carbide bits like to hop around sometimes, and they cut really well, so before you know it you can cut too much and ruin the cylinder. A friend of mine got a little excessive in clearing down the transfer ports, the wall was too thin and failed, of course the rings went with it and the rest of the motor with that situation.

As in that.
 


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