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<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>Since we are using science and design of experiments I would
like to add to the research.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>Test 1 - Brand new AH Spares (Bell) SS down pipe - 1" of flex
with moderate hand pressure.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>Test 2 - Same as above for the other down
pipe.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>Test 3 - NOS BN1 mild steel down pipe never been installed. No
rust. Minimum 20 years old - No flex solid as a rock.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>BTW the NOS BN1 pipe is for sale. It would be suitable for a
concourse restoration.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>Regards,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=454595300-25102019><FONT color=#0000ff
size=2 face=Arial>Harold</FONT></SPAN></DIV><BR>
<DIV lang=en-us class=OutlookMessageHeader dir=ltr align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> Healeys
[mailto:healeys-bounces@autox.team.net] <B>On Behalf Of </B>Bob
Spidell<BR><B>Sent:</B> Thursday, October 24, 2019 7:28 AM<BR><B>To:</B>
healeys@autox.team.net<BR><B>Subject:</B> Re: [Healeys] Down Pipes - The Final
Saga<BR></FONT><BR></DIV>
<DIV></DIV>re: "... hen brand new do the mild steel down pipes ever show any
sign of flex?"<BR><BR>If you mean does the flexible section, well, flex?
Yes, they do; maybe an inch or two of deflection at the end.<BR><BR>Bob<BR><BR>
<DIV class=moz-cite-prefix>On 10/24/2019 6:52 AM, Neil McDonald wrote:<BR></DIV>
<BLOCKQUOTE
cite=mid:CAM8RsFcAu-9EGm0CEKDwxyEhHW31JoaKqKvjb3_pOd1qim2ojw@mail.gmail.com
type="cite">
<DIV>
<DIV>An exciting subject indeed!</DIV></DIV>
<DIV><BR></DIV>
<DIV>I am about to fit an unused mild steel down pipe that I have had on the
shelf for maybe ten years. No sign of rust but I am away from home right now
so can not test it for flex. I might zap it with WD40 before fitting - can’t
hurt. </DIV>
<DIV><BR></DIV>
<DIV>The question is - when brand new do the mild steel down pipes ever show
any sign of flex?</DIV>
<DIV><BR></DIV>
<DIV>Neil</DIV>
<DIV>BN6</DIV>
<DIV><BR>
<DIV class=gmail_quote>
<DIV class=gmail_attr dir=ltr>On Thu, Oct 24, 2019 at 2:42 PM Perry via
Healeys <<A href="mailto:healeys@autox.team.net"
moz-do-not-send="true">healeys@autox.team.net</A>> wrote:<BR></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex">
<DIV lang=EN-US vlink="#954F72" link="blue">
<DIV class=m_-4121697948113192191WordSection1>
<P class=MsoNormal>Listers</P>
<P class=MsoNormal>As a follow up to my post on 10/18 on this exciting
subject, I decided to do an experiment with a couple downpipes I had in the
parts bin. Both pipes are new old stock and have never been on a car.
One is stainless and the other mild steel. Both have been laying on a shelf
in the garage for at least 9 years. </P>
<P class=MsoNormal>The test was to measure how much deflection was noted in
the flex portion of the downpipe when the tip (where it enters the muffler)
is loaded with a weight. The upper portion of the pipe was firmly held by
the bench vice. </P>
<P class=MsoNormal>Should have started with something less then 10 pounds
but the stainless moved considerably under that weight. The mild steel
did not budge.</P>
<P class=MsoNormal>At 47 pounds I heard a creaky noise but no movement on
the mild steel. I then applied an unspecified force with my hand to the 47
pounds and no movement. </P>
<P class=MsoNormal>My conclusion is that the mild steel flex pipe, once it
takes a set, ie, Gets Rusty, does not flex. It is the weak link that will
fail but it might as well be a piece of regular pipe.</P>
<P class=MsoNormal>Perry</P>
<P class=MsoNormal> </P>
<P class=MsoNormal>Sent from <A
href="https://go.microsoft.com/fwlink/?LinkId=550986" target=_blank
moz-do-not-send="true">Mail</A> for Windows 10</P>
<P
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<DIV>____________________<BR>Neil & Pam McDonald<BR>
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