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Listers
As a follow up to my post on 10/18 on this exciting subject, I decided to d=
o 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 leas=
t 9 years.=20
The test was to measure how much deflection was noted in the flex portion o=
f 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 mo=
ved considerably under that weight. The mild steel did not budge.
At 47 pounds I heard a creaky noise but no movement on the mild steel. I th=
en 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, Ge=
ts Rusty, does not flex. It is the weak link that will fail but it might as=
well be a piece of regular pipe.
Perry
Sent from Mail for Windows 10
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--></style></head><body lang=3DEN-US link=3Dblue vlink=3D"#954F72"><div cla=
ss=3DWordSection1><p class=3DMsoNormal>Listers</p><p class=3DMsoNormal>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.=C2=A0 One is stainless and the =
other mild steel. Both have been laying on a shelf in the garage for at lea=
st 9 years. </p><p class=3DMsoNormal>The test was to measure how much defle=
ction 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=3DMsoNormal>Should have sta=
rted with something less then 10 pounds but the stainless moved considerabl=
y under that weight.=C2=A0 The mild steel did not budge.</p><p class=3DMsoN=
ormal>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=3DMsoNormal>My conclusion is that the mild steel fle=
x 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=3DMsoNormal>Perry</p><p class=3DMsoNormal><o:p> </o:p></p><p cla=
ss=3DMsoNormal>Sent from <a href=3D"https://go.microsoft.com/fwlink/?LinkId=
=3D550986">Mail</a> for Windows 10</p><p class=3DMsoNormal><o:p> </o:p=
></p></div></body></html>=
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