However i m guessing a hone might be the only way to properly clean them up.
Light rust on cylinder walls.
If an engine is removed from a car and improperly stored rust will often appear on the cylinder walls.
That said i would prefer to remove whats loose not have it in the ring lands.
Rust in cylinder bore phosphoric acid will remove the rust allowing you to see the condition of the bores better.
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The cylinder walls are the surfaces of the holes in the block that are bored out for the pistons.
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Maybe a rebore if the rust scars are several thou deep.
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I would run the piston to the bottom of the bore squirt some shaving cream around where the piston meets the wall and clean the cylinder with wd40 and scotchbrite.
Suck out the shaving cream and debris with a shop vac wipe the wall down with tranny fluid to clean it and a final oil wipe.
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Obviously this is a crucial area of a motor since the pistons and rings slide up and down against this surface as the motor is running usually at many thousands of rpms.