Originally posted by JGood
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Originally posted by robiniscool
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My take is that if there's no bore ridge (and there never is on an EFI engine), and the original cross-hatch is still visible (most often the case on BMW engines) then the bores don't need any work... just cleaning.
I've never seen a build thread in which BMW engine that was still running when disassembled did not have good cross-hatching on the bores.
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