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RE: teflon valve seals

By afret - 04/03/2004 1:40:26 PM; IP 198.81.26.14

I never had much luck with teflon seals on a street car which needed positive valve seals from using dual type valve springs. They let too much oil get through under high vacuum (cruise/idle). I would always get oil on the spark plug threads. I would use viton on a street/strip car. I recently switched to viton from teflon and no longer get excess oil on the spark plugs. I don't even use the drip trays anymore. Lazer cams talks about this:
http://www.lazercams.com/CamTables.html
They have different sizes for different valves and valve guides. I bought the ones that fit my heads from Manley. Teflon is ok for drag race only engines though.

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Collapse <a href=../ForumFE/reply.aspx?ID=20160&Reply=20160><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20160" onclick="return false;">teflon valve seals</a> -- <font color=#0000ff>Tim P., <i>02/09/2004</i></font><script type="text/javascript">
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teflon valve seals -- Tim P., 02/09/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20916&Reply=20160><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20916" onclick="return false;">RE: teflon valve seals</a> -- <font color=#0000ff>femtnmax, <i>04/02/2004</i></font><script type="text/javascript">
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RE: teflon valve seals -- femtnmax, 04/02/2004

Collapse <a href=../ForumFE/reply.aspx?ID=20917&Reply=20160><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor20917" onclick="return false;">RE: teflon valve seals</a> -- <font color=#0000ff>Tim P., <i>04/03/2004</i></font><script type="text/javascript">
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RE: teflon valve seals -- Tim P., 04/03/2004

RE: teflon valve seals -- afret, 04/03/2004

RE: teflon valve seals -- giacamo, 04/03/2004

Historical note: Ford used Teflon seals for 1965-66 427s. [n/m] -- Mr F, 04/04/2004