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Old 02-06-2006 | 09:27 PM
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Flyboy Dave
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From: Pinon Hills, CA
Default RE: Break-in a rebuilt engine?

Bill....

....plated bores are honed just like any other bore. Look at the cross hatch
in the Chrome Saito bore....the chrome K&B cylinders are honed as well.
The honing is for the last "sizing" of the bore, and for the little bit of abrasion
necessary to seal the ring.

Motorcycle chrome bores are honed as well. They would never break in without
some friction with the new ring.

Honing or deglazing does not hurt the cylinder wall, it is necessary. It only takes
about 20 seconds to deglaze a cylinder with a bottle brush type hone, in a solvert
tank. If you had bored out a cylinder, and it was too tight (not enough clearance)
it takes about 15-20 minutes to hone out .001 (one thousandth).

It would take forever to hone .001 out of a chrome cylinder, if you could cut it
at all with a hand hone. Even a chromed bore should be deglazed and scratched
when re-ringing. Chrome bores use soft cast iron rings.

Trust me, you cannot harm the cylinder wall.

FBD.