I wasn't offended at all! I love the fact that there are so many folks
with great information in the FOT.
-----Original Message-----
From: Randall Young [mailto:ryoung@navcomtech.com]
Sent: Wednesday, April 03, 2002 7:24 PM
To: Bill Babcock
Subject: RE: Lapping/Seating Piston Rings
Hi Bill :
Almost every store I've looked in has the Bon Ami 'cleanser' variety, I've
never found the cleaning powder anywhere. (I've been looking for it to
use
on windshields)
Sorry if I offended in any way, was not my intention at all.
Randall
> -----Original Message-----
> From: Bill Babcock [mailto:BillB@bnj.com]
> Sent: Wednesday, April 03, 2002 3:57 PM
> To: Randall Young; fot@autox.team.net
> Subject: RE: Lapping/Seating Piston Rings
>
>
> I actually meant I could never find Bon Ami in stores.
>
> I assumed Diatomaceous earth was mostly calcium since it's Diatom
> skeletons. Shoulda looked it up. I see that it's actually about 80%
> silicon.
>
> It sure is amazing what you can find out in the FOT in just minutes.
>
>
> -----Original Message-----
> From: Randall Young [mailto:ryoung@NAVCOMTECH.COM]
> Sent: Wednesday, April 03, 2002 3:45 PM
> To: fot@autox.team.net
> Subject: RE: Lapping/Seating Piston Rings
>
>
> > I think Bon Ami has diatomaceous earth in it, and I think
> > Jewelers rouge does too. I've never been able to find it in stores.
>
> There are two different grades of Bon Ami, "cleaning powder" has only
> feldspar which is very soft, while the much more common "cleanser" has
> both
> feldspar and calcite, which is harder. Note that the cleanser says "not
> safe for glass" on the package. "Cleaning powder" is.
>
> Diatomaceous earth is silicon dioxide, basically an extremely fine sand,
> and
> probably not what you want to use as a lapping compound. It's readily
> available at any pool supply store, and at most animal feed stores (in a
> slightly different form).
>
> Jeweler's rouge is finely ground iron oxide (rust) possibly with some
> binders in it.
>
> They may work the same for lapping rings, but they aren't the same thing
> at
> all.
>
> Randall
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