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<p>Brass nuts are fairly soft so may be the split washers work there
way into the flanges of the nuts thus loosening them up. You may
try SS nuts or a steel washer between brass nut and spring washer.</p>
<p>Another possibility is that the lock washer loses its tension
because it gets to hot.</p>
<p>I am not a lover of split lock washers anyway as they damage the
surface of the nut and the item that is bolted down. I always
prefer the smooth but slightly bent ones (don't know the proper
name for them)</p>
<p><br>
</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 17-10-2019 om 02:46 schreef Fred
Wescoe:<br>
</div>
<blockquote type="cite"
cite="mid:CAPAC+V5UCB9HNzYY+uJmf81bG2DF3g3+HXM20L1yR3Lv2+Fzcg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Listers,
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>Thanks for any advice, I'm stumped,</div>
<div><br>
</div>
<div>Fred</div>
<div>66 BJ8</div>
</div>
<br>
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