Join Date: Apr 2010
Ferrari Life Posts: 2,196
Dave, your new rings should have a fresh, deglazed plateau finish on which to seat. For Nikasil, either a ball type hone (FlexHone) with 240 grit aluminum oxide abrasive, or a green Scotchbrite pad can be used to condition the surface.
If you opt for the FlexHone, use an old head gasket to protect the soft, uncoated tops of the liners and your deck surface as the abrasive balls can scratch these surfaces.
Also, a brand new FlexHone will want to "shed" some of its abrasive straight away, so break it in on a piece of pipe before you use it on your cylinders.
Brush Research recommend to keep the hone well lubricated, but if possible, I'd have a continuous oil flush going to wash away the grit, etc.
I'd be interested in seeing pics of your liners before & after you deglaze them.
'99 550, Rosso Corsa / Nero, S/N:114654, Assy: 31836, Engine: 52084
High mileage, low compression, and missing on a few cylinders.....just like my cars.
Maranello Skunkworks Team Member