You need a gadget called helicoil Chuck. You have to drill it out and re tap with
a special tap and then insert the Helicoil.
Paul Lamar
Paul, Let me turn everyone here onto a really GREAT thread repair
system. Chuck Heli-coils do work but they are a very old-tech
item. They do work ok when used very carefully. Since the helicoil
is a wound sping of diamond shaped wire they can be snagged
on one end and stripped or pulled out.
The item we all want is called a timesert. I don't work for
these guys but I would if they asked me! They make a special solid
insert that takes no more room radially than a standard Helicoil
but is at least twice as strong. They invented mechinery to
time the cutting of threads where the outside thread goes out
the inside also goes out. The resulting thin steel sleeve is made
so the last inside thread is un-formed. After cutting the new
thread a roll tap is run thru the ''sert" and swages the bottom
into the hole. Sorry for being longwinded on this one but
these things are so much better than Helicoils you can't believe it.
The Kawasaki mgmt. was so impressed the sold them thru the
dealerships. This was the only time I ever saw Kawasaki sell anything
from an outside vendor that they didn't own!
Check them out at www.timesert.com you will be glad you did.
Bill Jepson
The AirCraft Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/
Copyright 1998-2003 All world wide rights reserved.