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I have always had extractor (header) type manifolds fitted to my Healeys sin=
ce 1986.=20
My BN1, and my BJ8 - No flex pipe - all solid pipe - just like my previous S=
prites.=20
The extractor exhaust on my Healey 3000 - which has been wrapped since 1995 -=
has just recently celebrated its 24th anniversary on the Black and White ca=
r.=20
So no flex joint pipe. Mild steel - wrapped - and I'm now on my second muffl=
er with my side exit exhaust.=20
Ok - the first one had some repairs - but all the damage and wear was road c=
learance related.=20
Ignore the flex pipe. I've never had one ever in 35 years!
Ignore the doomsayers who will tell you your mild steel exhaust will burn up=
with exhaust wrap. It won't. Mine didn't.=20
My extractors are still fine. And I'm on my second muffler - and my ground c=
learance is probably less than yours!
The only enemy is ashphalt!!=20
Best
Chris
www.myaustinhealey.com=20
> On 25 Oct 2019, at 12:52 am, Neil McDonald <nmcd10@gmail.com> wrote:
>=20
> An exciting subject indeed!
>=20
> I am about to fit an unused mild steel down pipe that I have had on the sh=
elf for maybe ten years. No sign of rust but I am away from home right now s=
o can not test it for flex. I might zap it with WD40 before fitting - can=E2=
=80=99t hurt.=20
>=20
> The question is - when brand new do the mild steel down pipes ever show an=
y sign of flex?
>=20
> Neil
> BN6
>=20
>> On Thu, Oct 24, 2019 at 2:42 PM Perry via Healeys <healeys@autox.team.net=
> wrote:
>> Listers
>>=20
>> 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 o=
ther mild steel. Both have been laying on a shelf in the garage for at least=
9 years.
>>=20
>> 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.
>>=20
>> Should have started with something less then 10 pounds but the stainless m=
oved considerably under that weight. The mild steel did not budge.
>>=20
>> At 47 pounds I heard a creaky noise but no movement on the mild steel. I t=
hen applied an unspecified force with my hand to the 47 pounds and no moveme=
nt.
>>=20
>> My conclusion is that the mild steel flex pipe, once it takes a set, ie, G=
ets Rusty, does not flex. It is the weak link that will fail but it might as=
well be a piece of regular pipe.
>>=20
>> Perry
>>=20
>> =20
>>=20
>> Sent from Mail for Windows 10
>>=20
>> =20
>>=20
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation $12.75
>>=20
>> Archive: http://www.team.net/pipermail/healeys http://autox.team.net/arch=
ive
>>=20
>> Healeys@autox.team.net
>> http://autox.team.net/mailman/listinfo/healeys
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/nmcd10@=
gmail.com
>>=20
> --=20
> ____________________
> Neil & Pam McDonald
>=20
> Email: nmcd10@gmail.com
>=20
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
>=20
> Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archi=
ve
>=20
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/austin.h=
ealey@gmail.com
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>I have always had extractor (header) t=
ype manifolds fitted to my Healeys since 1986. </div><div id=3D"AppleMa=
ilSignature">My BN1, and my BJ8 - No flex pipe - all solid pipe - just like m=
y previous Sprites. </div><div id=3D"AppleMailSignature">The extractor e=
xhaust on my Healey 3000 - which has been wrapped since 1995 - has just rece=
ntly celebrated its 24th anniversary on the Black and White car. </div>=
<div id=3D"AppleMailSignature">So no flex joint pipe. Mild steel - wrapped -=
and I'm now on my second muffler with my side exit exhaust. </div><div=
id=3D"AppleMailSignature">Ok - the first one had some repairs - but all the=
damage and wear was road clearance related. </div><div id=3D"AppleMail=
Signature">Ignore the flex pipe. I've never had one ever in 35 years!</div><=
div id=3D"AppleMailSignature">Ignore the doomsayers who will tell you your m=
ild steel exhaust will burn up with exhaust wrap. It won't. Mine didn'=
t. </div><div id=3D"AppleMailSignature">My extractors are still fine. A=
nd I'm on my second muffler - and my ground clearance is probably less than y=
ours!</div><div id=3D"AppleMailSignature">The only enemy is ashphalt!! =
</div><div id=3D"AppleMailSignature">Best</div><div id=3D"AppleMailSignature=
">Chris</div><div id=3D"AppleMailSignature"><a href=3D"http://www.myaustinhe=
aley.com">www.myaustinhealey.com</a> </div><div id=3D"AppleMailSignatur=
e"><br><br></div><div><br>On 25 Oct 2019, at 12:52 am, Neil McDonald <<a h=
ref=3D"mailto:nmcd10@gmail.com";>nmcd10@gmail.com</a>> wrote:<br><br></div=
><blockquote type=3D"cite"><div><div><div dir=3D"auto">An exciting subject i=
ndeed!</div></div><div dir=3D"auto"><br></div><div dir=3D"auto">I am about t=
o fit an unused mild steel down pipe that I have had on the shelf for maybe t=
en years. No sign of rust but I am away from home right now so can not test i=
t for flex. I might zap it with WD40 before fitting - can=E2=80=99t hurt.&nb=
sp;</div><div dir=3D"auto"><br></div><div dir=3D"auto">The question is - whe=
n brand new do the mild steel down pipes ever show any sign of flex?</div><d=
iv dir=3D"auto"><br></div><div dir=3D"auto">Neil</div><div dir=3D"auto">BN6<=
/div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_att=
r">On Thu, Oct 24, 2019 at 2:42 PM Perry via Healeys <<a href=3D"mailto:h=
ealeys@autox.team.net">healeys@autox.team.net</a>> wrote:<br></div><block=
quote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc s=
olid;padding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"#954F72"><=
div class=3D"m_-4121697948113192191WordSection1"><p class=3D"MsoNormal">List=
ers</p><p class=3D"MsoNormal">As a follow up to my post on 10/18 on this exc=
iting subject, I decided to do an experiment with a couple downpipes I had i=
n the parts bin. Both pipes are new old stock and have never been on a car.&=
nbsp; One is stainless and the other mild steel. Both have been laying on a s=
helf in the garage for at least 9 years. </p><p class=3D"MsoNormal">The test=
was to measure how much deflection was noted in the flex portion of the dow=
npipe when the tip (where it enters the muffler) is loaded with a weight. Th=
e upper portion of the pipe was firmly held by the bench vice. </p><p class=3D=
"MsoNormal">Should have started with something less then 10 pounds but the s=
tainless moved considerably under that weight. The mild steel did not b=
udge.</p><p class=3D"MsoNormal">At 47 pounds I heard a creaky noise but no m=
ovement on the mild steel. I then applied an unspecified force with my hand t=
o the 47 pounds and no movement. </p><p class=3D"MsoNormal">My conclusion is=
that the mild steel flex pipe, once it takes a set, ie, Gets Rusty, does no=
t flex. It is the weak link that will fail but it might as well be a piece o=
f regular pipe.</p><p class=3D"MsoNormal">Perry</p><p class=3D"MsoNormal"><u=
></u> <u></u></p><p class=3D"MsoNormal">Sent from <a href=3D"https://go=
.microsoft.com/fwlink/?LinkId=3D550986" target=3D"_blank">Mail</a> for Windo=
ws 10</p><p class=3D"MsoNormal"><u></u> <u></u></p></div></div>________=
_______________________________________<br>
Support <a href=3D"http://Team.Net";>Team.Net</a> <a href=3D"http://www.team.=
net/donate.html" rel=3D"noreferrer" target=3D"_blank">http://www.team.net/do=
nate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferrer=
" target=3D"_blank">http://www.team.net/pipermail/healeys</a> <a href=3D"htt=
p://autox.team.net/archive" rel=3D"noreferrer" target=3D"_blank">http://auto=
x.team.net/archive</a><br>
<br>
<a href=3D"mailto:Healeys@autox.team.net"; target=3D"_blank">Healeys@autox.te=
am.net</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys"; rel=3D"noreferrer=
" target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
/nmcd10@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team.ne=
t/mailman/options/healeys/nmcd10@gmail.com</a><br>
<br>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" d=
ata-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><di=
v><div dir=3D"ltr"><div><div>____________________<br>Neil & Pam McDonald=
<br><div><br></div></div></div>Email: <a href=3D"mailto:nmcd10@gmail.com"; ta=
rget=3D"_blank">nmcd10@gmail.com</a><br><div><div><br></div></div></div></di=
v></div></div></div></div>
</div></blockquote><blockquote type=3D"cite"><div><span>____________________=
___________________________</span><br><span>Support <a href=3D"http://Team.N=
et">Team.Net</a> <a href=3D"http://www.team.net/donate.html";>http://www.team=
.net/donate.html</a></span><br><span>Suggested annual donation $12.75<=
/span><br><span></span><br><span>Archive: <a href=3D"http://www.team.net/pip=
ermail/healeys">http://www.team.net/pipermail/healeys</a> <a href=3D"http://=
autox.team.net/archive">http://autox.team.net/archive</a></span><br><span></=
span><br><span><a href=3D"mailto:Healeys@autox.team.net";>Healeys@autox.team.=
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ockquote></body></html>=
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_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
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