<div dir="ltr"><div class="gmail_quote">On Wed, Aug 27, 2008 at 12:15 AM, Don Mannino <span dir="ltr"><<a href="mailto:donmannino@ca.rr.com">donmannino@ca.rr.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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<div><font face="Arial" size="2">John,</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">As others have said, 50/50 mix is useable - but is
actually a rather strong mixture. 30/70 is milder, and works for many
situations - and is also readily available as Isopropyl alcohol. Some drug
stores also sell 50% and 90%.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Isopropyl should not have anything but alcohol and
water - but read the label to be sure. It is also cheap and readily
available.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Keep in mind that shrinking the bushings does not
solve all problems. If the sluggishness is coming from a simple tight
bushing, and the cloth is still soft, or was poor quality to begin with,
shrinking will help, but not necessarily fix all problems.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">If the bushings are gummy from lubricants, if there
are burrs on the pins snagging the cloth, if the bushings are binding on the
birds-eyes, or if glue has worked through the bushing onto the pin, the
shrinking solution will not be a solution. So plan on doing a careful
check for friction after a good drying out period has passed.</font></div>
<div><font face="Arial" size="2"></font> </div><font color="#888888">
<div><font face="Arial" size="2">Don Mannino</font></div>
<div><font face="Arial" size="2"></font> </div></font></div></blockquote><div><br></div><div>Thanks, Don. I re-read one of Spurlock's articles about this sizing method. He also says that 50% is high. In fact, he said that 30% is high.</div>
<div><br></div><div>What I did yesterday is use four different strengths: 10%, 25%, 35%, and 50%. I guessed which strength to use for which friction level (due to my relative inexperience except for the occasional field sizing). Any hammer center over 10 grams resistance got the 50%. Between 9-10g got 35%; between 7-8 got the the 25%; and anything that is slightly over 6g got the 10%. I'll be checking things today, so we'll see how it worked.</div>
<div> </div></div>-- <br>JF<br>
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