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<DIV><FONT size=2>Depends on the figure you used. Workshop Manual quotes
15 thou, cold. I don't like hot as the engine is continually cooling while
I'm doing it. I use 14 thou which is loose and 16 thou which
is lightly pinched so I can get a better feel for it as I only check
them very rarely. As far as I know it really only makes a difference if
the engine gets so hot that the gaps close up and you get combustion seepage
past not quite closed valves, which burns them. Any loss of
performance is only secondary.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>In the early years not only did I find I was adjusting them
every year, sometimes opening them and sometimes closing them, but also
getting repeatable gaps from one turn of the engine to the next was a
problem. Then I discovered that at the strict rule of nine (RON) points,
several of the valves were still changing gap. Some of them had the
biggest gap before RON and some after. Since discovering that perhaps 15
years or go or more I've never had to alter them until I changed the head gasket
last year, so hadn't been checking tem every year anyway.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>PaulH</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
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<P class=MsoNormal>When I went to reset the tappet clearance, I found the old
settings rather sloppy. I reset them so that the gauge was snug – it slid in
but it definitely tight. Which is correct? I know that it makes a difference
on performance and full combustion. Yes, I did the checking while
hot.<o:p></o:p></P></DIV></BLOCKQUOTE></BODY></HTML>