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Engine tear down, reassembly and tuning - Honing the bores - Slideshow View

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Honing the bores
Here I'm using a common automotive brake hone to remove the glaze on the cylinder walls. On these little 1.56" bores, it's practically the only honing tool that will fit. Use as much pressure as you can get out of the tool, and work it with a variable speed drill. The idea is to produce a 60� crosshatch. That means turning the drill pretty slowly and moving it in and out pretty rapidly.
The grooves you put into the cylinder wall will help hold oil and therefore increase compression. You want to remove as little actual material as possible. If you're too aggressive with the hone, you'll wear the bore out of round or taper, which will ruin the engine.
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