Yes, in this article, they also emphasized the use of a torque plate. They had
numbers comparing both hot and cold, and with/without the torque plate.
Also, the type of ring being used changes the type of honing that should be
done. These guys are talking about holding piston ring land flatness to within a
micron (.00004") and ring thickness, flatness and parallelism within .00005"!
Gordon Glasgow
Renton, WA
> -----Original Message-----
> From: owner-datsun-roadsters@autox.team.net
> [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of datsunmike
> Sent: Sunday, April 14, 2002 6:44 PM
> To: Gordon Glasgow; Roadster List
> Subject: Re: Opinions?
>
>
> I heard that there is less distortion using the process you described,
> however most shops aren't yet equipped to do it. The shop I used does have
> the machine as my friend and I found out. While most shops hone the
> cylinders using a drill, this place has a computer controlled machine that
> does it. The block is centered using the crank and cam journals so it hones
> it exactly to the centerline and exactly perpendicular to the crank. Quite a
> piece of equipment.
>
> Mike
>
> ----- Original Message -----
> From: "Gordon Glasgow" <gsglasgow@attbi.com>
> To: "Roadster List" <datsun-roadsters@autox.team.net>
> Sent: Sunday, April 14, 2002 9:02 PM
> Subject: RE: Opinions?
>
>
> > Speaking of rings, remember the thread a little while back about NASCAR
> and
> > technology? The latest issue of Circle Track has a couple of interesting
> tech
> > articles about piston and ring technology, and a new bore finishing
> technique
> > called "hot-honing."
> >
> > Gordon Glasgow
> > Renton, WA
> >
> >
> > > -----Original Message-----
> > > From: owner-datsun-roadsters@autox.team.net
> > > [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Brian
> > > Hollands
> > > Sent: Sunday, April 14, 2002 5:19 PM
> > > To: Tom Phelan
> > > Cc: Datsun Roadster Mailing list
> > > Subject: RE: Opinions?
> > >
> > >
> > > The compression rings do have a top and bottom and were installed
> correctly.
> > > The oil ring is a 4-piece affair (Deves) with an upper and lower ring
> that
> > > are identical. The only note made in the oil ring's instruction was to
> > > stagger the gap of each piece 90 degrees. It doesn't appear that the
> oil
> > > ring can be installed upside down.
> > >
> > > Brian '69 2000
> > > Tampa, FL
> > > http://web.tampabay.rr.com/oilleak/
> > >
> > >
> > > -----Original Message-----
> > >
> > > Most rings have a top and bottom side. If it's installed upside down it
> may
> > > not work as designed and will actually let oil pass into the chamber
> instead
> > > of wiping excess oil down the cylinder walls.
> > >
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> >
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>
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