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The alusil sounds like it has two good properties in its formula: aluminum base material that transmits heat well, and a good spattering of sand crystals which act as an ultra-hard wear surface.
Some questions:
-do the cylinder materials wear from top to bottom in a good, repairable shape with outwards pressure , or does it even matter with fresh rings ?
-do alusil cyls need to be used with a specific piston that matches its (AL) expansion rate, and what are the o.k. range specs?
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Meanwhile other things are still happening.
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