<HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">In a message dated 6/10/2011 1:09:10 AM Central Daylight Time, auprichard@uprichard.net writes: <BR>
<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Thinking this was vapor lock, I re-routed the gas line and fitted a heat shield. </FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=3 PTSIZE=12 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> </FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=3 PTSIZE=12 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Today was 97 degrees and I tested my hypothesis. Drove until it was hot and then parked it in front of the house. After 30 minutes, started it up and it was a repeat performance. Ran rough and then died. Checked the plugs – they were all very sooty. Would you expect this from vapor lock? And where do you go from here – coat the exhaust manifold?</FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=3 PTSIZE=12 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">I thought vapor lock was starvation due to the fact that the fuel pump can't pump vapor. You may have issues with the float valves in the carb. Does it make any difference if the tank is full vs. near empty? Do you have the fuel shutoff valve? If so what happens if you close it?<BR>
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Dave</FONT></HTML>