Date: Mon, 28 Jun 2004 20:40:22 -0500
Reply-To: Stan Wilder <wilden1-1@SBCGLOBAL.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1-1@SBCGLOBAL.NET>
Subject: Re: Hydro lifters (# of turn)
Content-Type: text/plain; charset="iso-8859-1"
Get real ..............You guys pick your nits alone.
----- Original Message -----
From: "Mike Collum" <collum@verizon.net>
To: "Stan Wilder" <wilden1-1@SBCGLOBAL.NET>; <vanagon@GERRY.VANAGON.COM>
Sent: Monday, June 28, 2004 8:34 AM
Subject: Re: Re: Hydro lifters (# of turn)
> What happened to fact (notion?) that different metals expand/contract at
> different rates?
>
> Mike
>
>
> > It is very easy to see that you've never heated a crank timing gear and
> > dropped it onto a freshly turned crank.
> > I'm outt'a this...............
> > You guys pick your nits alone.
> >
> > Stan Wilder
> > http://www.engineceramics.com/
> >
> >
> > ----- Original Message -----
> > From: "Daniel L. Katz" <katzd54@YAHOO.COM>
> > To: <vanagon@GERRY.VANAGON.COM>
> > Sent: Sunday, June 27, 2004 11:00 PM
> > Subject: Re: Hydro lifters (# of turn)
> >
> >
> > > yes, but the whole engine, including all the gaps and holes, expand
with
> > > increasing temperature. if all the materials were the same, and the
> > > temperature was uniform throughout the engine, then the gap would
expand
> > > by exactly the same percentage as the overall expansion of the engine;
> and
> > > there would be more than .006 lash. there might be a differential
> thermal
> > > expansion going on because of different materials and temperature
> > > differences, and maybe that is what is going on, but it is a little
> > > surprising.
> > >
> > > the idea is the same as heating a metal plate with a hole punched out.
> the
> > > plate and hole must expand by the same percentage. maybe the easiest
way
> > > to prove that statement is to imagine also heating the piece that was
> > > punched out. it obviously exdpands, and should be just the right size
to
> > > fit the expanded hole in the heated sheet.
> > >
> > > dan
> > >
> > > On Mon, 28 Jun 2004 10:19:53 -0500, Stan Wilder
> <wilden1-1@SBCGLOBAL.NET>
> > > wrote:
> > >
> > > >It's the heat that expands the steel parts.
> > > >The various parts just expand and consume that .006.
> > > >Various parts = Lifters, Rocker Arms, Valve Stems, Pushrods, valve
> seats.
> > > >Check out .006 on a feeler gauge, it's about 1/2 as thick as typing
> > paper.
> > > >
> > > >Stan Wilder
> > > >
>
>
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