<VV> more on Plateau honing

[Geoffrey A. Johnson]

I think this is quite a stretch of the imagination.  That a plateau honed 
engine will last twice as long.  It comes down to how much ring material 
loss and cylinder wall loss is observed on a engine that is not honed in 
such a manner versus the same loss on a identical engine with the same 
initial conditions and break in.  Sure it will have obvious benefits on 
intial break-in.  I think in tests you would find a much smaller difference 
in overall life then  most people would guess.
-Geoff Johnson

--On Wednesday, March 30, 2005 3:55 PM -0500 BobHelt at aol.com wrote:
> Well, I've never seen any data or proof, but logic would tell you that a
> plateau honed engine would last a lot longer then one not so honed. But
> again only  you can decide. If an engine honed the old way will break in
> within 3000  miles, it might be expected to have a life of, say, 100,000
> to 150,000 miles. So,  maybe, a plateau honed engine might have an
> expectancy of 300,000 miles. But,  and that could be a bit BUT, who is
> really going to benefit from the  additional 150,000 miles of life? Will
> anybody ever keep a car long enough to go that  additional mileage?
>
> Bob Helt
>