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any metallurgists here :)



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Hmmm. Some motorcycles (and some cars too, now that I think of =
it...Porche? BMW bikes?) use liner-less aluminum cylinders.  The term =
Nikasil comes to mind.  I had a race bike in the late sixties (a =
Kawasaki) that had a chrome-plated aluminum cylinder.  I used to buy =
replacements by the dozen....
Larry
  ----- Original Message -----=20
  From: Alan Stamper=20
  To: Dan Smith ; L F ; Allyn ; Ryan Schuermann ; =
scirocco-l@scirocco.org=20
  Sent: Monday, February 24, 2003 4:23 AM
  Subject: Re: any metallurgists here :)


  As for the wear almost every aluminum engine has sometype of steel or =
steel alloy liners in the cylinders for the pistons to move in.  Unless =
you do that you end up with Vega's.  Any one else know of a car with an =
aluminum block without liners?
  =20
  Alan
    ----- Original Message -----=20
    From: Dan Smith=20
    To: L F ; Allyn ; Ryan Schuermann ; scirocco-l@scirocco.org=20
    Sent: Sunday, February 23, 2003 6:47 PM
    Subject: Re: any metallurgists here :)


    I knew weight was the reason, I just wasn't sure on the expansion =
thing. I wouldn't put it past auto makers to make a lighter, more =
efficient engine that wore out a lot quicker due to expansion and =
contraction, hence the question.=20

    Dan=20

     L F <rocco16v@netzero.net> wrote:=20

      Aluminum does have a coefficient of expansion greater than the =
ferrous alloys and cast iron.  That characteristic is accounted for when =
they design for aluminum. Aluminum blocks are becoming more popular for =
one reason; weight.
      (And vehicle weight is the major player in the quest for greater =
mileage)

      Larry
      sandiego16v
        ----- Original Message -----=20
        From: Dan Smith=20
        To: Allyn ; Ryan Schuermann ; scirocco-l@scirocco.org=20
        Sent: Sunday, February 23, 2003 1:43 PM
        Subject: Re: any metallurgists here :)


        Speaking of engine metal, why are most engines aluminum now? =
Doesn't aluminum expand and contract a lot under heat/cold? Wouldn't =
that really stress out parts and stuff?=20

        Dan=20

         Allyn <amalventano@sc.rr.com> wrote:=20

          if it wasnt an alloy, our bottom ends would all be piles of =
orange dust by
          now.
          Al

          ----- Original Message -----
          From: "Ryan Schuermann"=20
          To:=20
          Sent: Sunday, February 23, 2003 4:21 PM
          Subject: any metallurgists here :)


          > ok our beloved vw bottom end is... cast iron? Does anyone =
know
          > if it's pure iron or an alloy of some type?
          >
          > Ryan
          >
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hmmm. Some motorcycles (and some cars =
too, now that=20
I think of it...Porche? BMW bikes?) use liner-less aluminum =
cylinders.&nbsp; The=20
term Nikasil comes to mind.&nbsp; I had a race bike in the late sixties =
(a=20
Kawasaki) that had a chrome-plated aluminum cylinder.&nbsp; I used to=20
buy&nbsp;replacements by the dozen....</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Larry</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:scirocco-al@insight.rr.com"=20
  title=3Dscirocco-al@insight.rr.com>Alan Stamper</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
href=3D"mailto:sad_rocc@yahoo.com"=20
  title=3Dsad_rocc@yahoo.com>Dan Smith</A> ; <A =
href=3D"mailto:rocco16v@netzero.net"=20
  title=3Drocco16v@netzero.net>L F</A> ; <A =
href=3D"mailto:amalventano@sc.rr.com"=20
  title=3Damalventano@sc.rr.com>Allyn</A> ; <A=20
  href=3D"mailto:big_hot_tamale@yahoo.com"; =
title=3Dbig_hot_tamale@yahoo.com>Ryan=20
  Schuermann</A> ; <A href=3D"mailto:scirocco-l@scirocco.org"=20
  title=3Dscirocco-l@scirocco.org>scirocco-l@scirocco.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, February 24, 2003 =
4:23=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: any metallurgists =
here=20
  :)</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>As for the wear almost every aluminum =
engine has=20
  sometype of steel or steel alloy liners in the cylinders for the =
pistons to=20
  move in.&nbsp; Unless you do that you end up with Vega's.&nbsp; Any =
one else=20
  know of a car with an aluminum block without liners?</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Alan</FONT></DIV>
  <BLOCKQUOTE=20
  style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
    <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
    <DIV=20
    style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
    <A href=3D"mailto:sad_rocc@yahoo.com"; title=3Dsad_rocc@yahoo.com>Dan =
Smith</A>=20
    </DIV>
    <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
    href=3D"mailto:rocco16v@netzero.net"; title=3Drocco16v@netzero.net>L =
F</A> ; <A=20
    href=3D"mailto:amalventano@sc.rr.com"; =
title=3Damalventano@sc.rr.com>Allyn</A> ;=20
    <A href=3D"mailto:big_hot_tamale@yahoo.com"=20
    title=3Dbig_hot_tamale@yahoo.com>Ryan Schuermann</A> ; <A=20
    href=3D"mailto:scirocco-l@scirocco.org"=20
    title=3Dscirocco-l@scirocco.org>scirocco-l@scirocco.org</A> </DIV>
    <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, February 23, =
2003 6:47=20
    PM</DIV>
    <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: any =
metallurgists here=20
    :)</DIV>
    <DIV><BR></DIV>
    <P>I knew weight was the reason, I just wasn't sure on the expansion =
thing.=20
    I wouldn't put it past auto makers to make a lighter, more efficient =
engine=20
    that wore out a lot quicker due to expansion and contraction, hence =
the=20
    question.=20
    <P>Dan=20
    <P>&nbsp;<B><I>L F &lt;<A=20
    =
href=3D"mailto:rocco16v@netzero.net";>rocco16v@netzero.net</A>&gt;</I></B>=
=20
    wrote:=20
    <BLOCKQUOTE=20
    style=3D"BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; =
PADDING-LEFT: 5px">
      <META content=3D"MSHTML 5.00.3504.2500" name=3DGENERATOR>
      <STYLE></STYLE>

      <DIV><FONT face=3DArial size=3D2>Aluminum does have a coefficient =
of expansion=20
      greater than the ferrous alloys and cast iron.&nbsp; That =
characteristic=20
      is accounted for when they design for aluminum. Aluminum blocks =
are=20
      becoming more popular for one reason; weight.</FONT></DIV>
      <DIV><FONT face=3DArial size=3D2>(And vehicle weight is&nbsp;the =
major player=20
      in the quest for greater mileage)</FONT></DIV>
      <DIV>&nbsp;</DIV>
      <DIV><FONT face=3DArial size=3D2>Larry</FONT></DIV>
      <DIV><FONT face=3DArial size=3D2>sandiego16v</FONT></DIV>
      <BLOCKQUOTE=20
      style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
        <DIV style=3D"FONT: 10pt arial">----- Original Message ----- =
</DIV>
        <DIV=20
        style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
        <A href=3D"mailto:sad_rocc@yahoo.com"; =
title=3Dsad_rocc@yahoo.com>Dan=20
        Smith</A> </DIV>
        <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
        href=3D"mailto:amalventano@sc.rr.com"=20
        title=3Damalventano@sc.rr.com>Allyn</A> ; <A=20
        href=3D"mailto:big_hot_tamale@yahoo.com"=20
        title=3Dbig_hot_tamale@yahoo.com>Ryan Schuermann</A> ; <A=20
        href=3D"mailto:scirocco-l@scirocco.org"=20
        title=3Dscirocco-l@scirocco.org>scirocco-l@scirocco.org</A> =
</DIV>
        <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, February =
23, 2003=20
        1:43 PM</DIV>
        <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: any =
metallurgists here=20
        :)</DIV>
        <DIV><BR></DIV>
        <P>Speaking of engine metal, why are most engines aluminum now? =
Doesn't=20
        aluminum expand and contract a lot under heat/cold? Wouldn't =
that really=20
        stress out parts and stuff?=20
        <P>Dan=20
        <P>&nbsp;<B><I>Allyn &lt;<A=20
        =
href=3D"mailto:amalventano@sc.rr.com";>amalventano@sc.rr.com</A>&gt;</I></=
B>=20
        wrote:=20
        <BLOCKQUOTE=20
        style=3D"BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; =
PADDING-LEFT: 5px">if=20
          it wasnt an alloy, our bottom ends would all be piles of =
orange dust=20
          by<BR>now.<BR>Al<BR><BR>----- Original Message -----<BR>From: =
"Ryan=20
          Schuermann" <BIG_HOT_TAMALE@YAHOO.COM><BR>To:=20
          <SCIROCCO-L@SCIROCCO.ORG><BR>Sent: Sunday, February 23, 2003 =
4:21=20
          PM<BR>Subject: any metallurgists here :)<BR><BR><BR>&gt; ok =
our=20
          beloved vw bottom end is... cast iron? Does anyone =
know<BR>&gt; if=20
          it's pure iron or an alloy of some type?<BR>&gt;<BR>&gt;=20
          Ryan<BR>&gt;<BR>&gt;=20
          __________________________________________________<BR>&gt; Do =
you=20
          Yahoo!?<BR>&gt; Yahoo! Tax Center - forms, calculators, tips,=20
          more<BR>&gt; http://taxes.yahoo.com/<BR>&gt;<BR>&gt;=20
          _______________________________________________<BR>&gt; =
Scirocco-l=20
          mailing list<BR>&gt; Scirocco-l@scirocco.org<BR>&gt;=20
          =
http://neubayern.net/mailman/listinfo/scirocco-l<BR>&gt;<BR><BR><BR>_____=
__________________________________________<BR>Scirocco-l=20
          mailing l!=20
          =
ist<BR>Scirocco-l@scirocco.org<BR>http://neubayern.net/mailman/listinfo/s=
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