"Deglazing" on an iron block is completely different than the acid etch process used on an alusil block. Have you found/read success stories of people doing it this way?
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.
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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