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Honing and piston rings

masterjoe

New member
Joined
Nov 7, 2025
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3
I am getting ready to put new piston rings onto my M696 pistons and need some advice on the cylinders. The cylinder walls still have the original cross-hatching pattern, and it looks pretty good. But when you install new rings... should you always hone the cylinder walls first, even if the existing cross-hatch looks fine?

I know new rings need a properly roughed surface to seat correctly, and that's the whole point of honing but I worry about unnecessarily taking away material if the original finish is still there. Should I just install the new rings as is and risk them not seating well or is a light hone always the right step for ring replacement? What is the standard practice when the factory cross-hatch is still visible anyway?
 
It will need fresh hatching though for the new rings to seat properly, so yes.
 
Make sure the cylinders are honed to remove any glaze when installing new rings.

Use a ball hone for this job. Good luck!
 
+1 @uglytruth Do not skip the hone since it can risk the rings not seating as well which can lead to lower compression or oil consumption.
 
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