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<DIV>Are there end mill bits available with a square central locating shoulder built in? Seems that may be the easiet way to get what Earl suggests. Another two step approach might be to use drill rod that just fits the hole as the locator first, locking the head down in the fixture, then switching to the bit and touching the surface to square.</DIV>
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<DIV>MattK</DIV>
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<DIV>In a message dated 8/26/2006 1:49:06 PM Eastern Standard Time, johnferrell@earthlink.net writes:</DIV>
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<DIV><FONT face=Arial size=2>I hate to bug Clarence with the problem. Since the engine runs well the only real problem is it slobbers on the airplane. </FONT></DIV>
<DIV><FONT size=2></FONT><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have a Lathe and Mill in the shop. Set up will be tricky, the plug is pretty deeply recessed. The risk to the threads by using a pilot rod in the hole is high.</FONT></DIV>
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<DIV><FONT face=Arial size=2>I believe I will anneal a plug washer and try a little of the liquid gasket goo. If that don't solve the problem I will just accept the mess. </FONT></DIV>
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<DIV><FONT face=Arial>John Ferrell W8CCW<BR>"My Competition is not my enemy"<BR></FONT><A title=http://dixienc.us/ href="http://dixienc.us/"><FONT face=Arial>http://dixienc.us/</FONT></A><BR></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=mailto:ehaury@houston.rr.com href="mailto:ehaury@houston.rr.com">Earl Haury</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=mailto:nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, August 26, 2006 11:44 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Engine problem</DIV>
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<DIV><FONT face=Arial size=2>John</FONT></DIV>
<DIV><FONT size=2></FONT><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial size=2>Assuming that the problem is lack of perpendicularity between the threaded hole and the gasket surface - find a "friend" that will set the thing up in a mill aligned on the threaded hole, then touch the gasket surface with a mill to square. (You might give Clarence a call also - unusual that he would not catch this.)</FONT></DIV>
<DIV><FONT size=2></FONT><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial size=2>Earl</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></DIV>
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