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The rubber mounts shouldn't cause a problem, but the flexible sections of the down pipes may have become too stiff to flex, in which case the relative motion of the engine to the chassis may be transmitted to the down pipe flanges.</div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; background: var(--white);">Also remember that heating the steel fasteners will tend to draw out the temper making them easier to stretch. If they have loosened before
then they may have begun to stretch when you torqued them.</span><br>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; background: var(--white);">Bill Lawrence</span></div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; background: var(--white);">BN1 #554</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Healeys <healeys-bounces@autox.team.net> on behalf of i erbs <eyera3000@gmail.com><br>
<b>Sent:</b> Friday, October 18, 2019 12:33 AM<br>
<b>To:</b> Bob Spidell <bspidell@comcast.net><br>
<b>Cc:</b> Ahealey help <healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Fwd: Down pipes</font>
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<div dir="auto">How are your rubber mounts? Is your exhaust rattling a lot?<br>
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<div>Ira Erbs<br>
Portland, OR<br>
typos and artifacts are the fault of my phone</div>
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<div dir="ltr" class="x_gmail_attr">On Thu, Oct 17, 2019, 10:24 AM Bob Spidell <<a href="mailto:bspidell@comcast.net">bspidell@comcast.net</a>> wrote:<br>
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Begin forwarded message:<br>
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<blockquote type="cite">
<div dir="ltr"><b>From:</b> Bob Spidell <<a href="mailto:bspidell@comcast.net" target="_blank" rel="noreferrer">bspidell@comcast.net</a>><br>
<b>Date:</b> October 17, 2019 at 8:21:17 AM PDT<br>
<b>To:</b> Fred Wescoe <<a href="mailto:fredwescoe@gmail.com" target="_blank" rel="noreferrer">fredwescoe@gmail.com</a>><br>
<b>Subject:</b> <b>Re: [Healeys] Down pipes</b><br>
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</blockquote>
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<div dir="ltr"><span>I tried everything: new nuts, SS studs and torquing the snot out of the nuts (snapping a stud in the process) and still they would work loose. Finally gave up and double-nutted with mild steel nuts with high-temp anti-seize on the studs;
they haven’t loosened since.</span><br>
<span></span><br>
<blockquote type="cite"><span>On Oct 16, 2019, at 6:19 PM, Fred Wescoe <<a href="mailto:fredwescoe@gmail.com" target="_blank" rel="noreferrer">fredwescoe@gmail.com</a>> wrote:</span><br>
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<blockquote type="cite"><span>Listers,</span><br>
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<blockquote type="cite"><span>Today, I had to tighten the 6 nuts on my exhaust down pipes. This is the second time in 2 years I have had to do this. What is causing the nuts to work loose? Each of the 6 studs from the exhaust manifolds has split lock washers
and brass nuts on the down pipe flanges. Each time time I have tightened the nuts, I tighten them until the nuts squeak.</span><br>
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<blockquote type="cite"><span></span><br>
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<blockquote type="cite"><span>What am I doing wrong and does anyone else have this issue? What do I need to do to fix this? The car is a 66 BJ8 with stock manifolds and down pipes.</span><br>
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<blockquote type="cite"><span>Thanks for any advice, I'm stumped,</span><br>
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<blockquote type="cite"><span>Fred</span><br>
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<blockquote type="cite"><span>66 BJ8</span><br>
</blockquote>
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