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PTFE (teflon) thread sealant has worked well for me over the years;
particularly on differential plugs (and IIRC I used it on my sender screws).
In my experience, you have to torque copper washers pretty tight to get
them to seal--not a problem with pan drain plugs--and they can be
annealed back to soft. Note one of the major causes for sender leaks is
owners over-torquing the screws--trying to stop a leak--and warping the
flange on the sender (not that I would EVER do such a thing). Sometimes,
you can flat-file the flange back to straightness.
Bob
On 1/3/2021 10:30 PM, Charles Rice wrote:
>
> I installed an aftermarket tank and sender for my BN2 about 10 yrs
> ago. Had constant leaks, I tried silicon gasket, cork, hylomar,
> sealing washers ? still leaked.
>
> About 3-1/2 yrs ago while in Maryland on business, I took the car to
> Bruce at Healey Surgeons for various issues, including the leak. He
> installed original
>
> type cork gasket, new screws with _copper washers._ It hasn?t leaked
> since! He said to always use new copper washers anytime the sender is
> removed. YMMV.
>
> Chappy Rice BN2
>
>
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PTFE (teflon) thread sealant has worked well for me over the years;
particularly on differential plugs (and IIRC I used it on my sender
screws).<br>
<br>
In my experience, you have to torque copper washers pretty tight to
get them to seal--not a problem with pan drain plugs--and they can
be annealed back to soft. Note one of the major causes for sender
leaks is owners over-torquing the screws--trying to stop a leak--and
warping the flange on the sender (not that I would EVER do such a
thing). Sometimes, you can flat-file the flange back to
straightness.<br>
<br>
Bob<br>
<br>
<div class="moz-cite-prefix">On 1/3/2021 10:30 PM, Charles Rice
wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal">I installed an aftermarket tank and sender
for my BN2 about 10 yrs ago. Had constant leaks, I tried
silicon gasket, cork, hylomar, sealing washers ? still
leaked.<o:p></o:p></p>
<p class="MsoNormal">About 3-1/2 yrs ago while in Maryland on
business, I took the car to Bruce at Healey Surgeons for
various issues, including the leak. He installed original
<o:p></o:p></p>
<p class="MsoNormal">type cork gasket, new screws with <u>copper
washers.</u> It hasn?t leaked since! He said to always use
new copper washers anytime the sender is removed. YMMV.<o:p></o:p></p>
<p class="MsoNormal">Chappy Rice BN2<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<br>
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<br>
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