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<BODY lang=EN-US style="tab-interval: .5in" vLink=blue link=blue =
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<DIV><FONT face=Arial size=2>That's just what I was going to ask you =
- what kind
of pin are you using? For traditional pins, I have used a drill bit the =
same
diameter as the pin and found the fit to be nice and tight. If yours are =
loose,
I would suspect a bent drill bit or somesuch. Are you doing the drilling =
with a
drill press with a good chuck? Have you measured runout? For vertical =
hitches I
use stainless steel spring pins. If I remember correctly (it's been a =
while
since I drilled them) you use the same size drill bit as the pin. The =
pin is
slightly expanded and when you pound it in the hole, it will compress a =
little
bit for a very nice snug fit.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If you are hand drilling, perhaps that =
is your
source for the enlarged holes. I'm sure you could successfull epoxy a =
loose one
in place. I would recommend using West System resin thickened with their =
<FONT
size=3><FONT size=2>#404 High-Density filler - that pin won't go
anywhere.</FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Terry Farrell</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial"> </DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Never =
mind.<SPAN
style="mso-spacerun: yes"> </SPAN><SPAN class=GramE>Didn’t =
read
carefully enough.</SPAN><SPAN style="mso-spacerun: yes"> =
</SPAN><SPAN
style="mso-spacerun: yes"> </SPAN>I see that your drilled the =
same size
as the pin. <SPAN style="mso-spacerun: yes"> </SPAN>Does that =
work
out?<SPAN style="mso-spacerun: yes"> </SPAN>When I’ve tried =
to drill out
for new pins it seems that the hole ends up slightly bigger than the =
drill
size and the pin is often slightly loose.<SPAN
style="mso-spacerun: yes"> </SPAN>How should it be?<SPAN
style="mso-spacerun: yes"> </SPAN>Should one be tapping them =
into a snug
fit or do you worry about stressing the cast iron if they are too =
tight.<SPAN
style="mso-spacerun: yes"> </SPAN>Should they be secured with
epoxy?<SPAN style="mso-spacerun: yes"> </SPAN>What’s the
approach?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">What type =
of hitch
pin did you use and what drill bit size did you use relative to the =
diameter
of the pin?<o:p></o:p></SPAN></FONT></P><o:p></o:p></SPAN></FONT>
<DIV>
<P><FONT face="Times New Roman" color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; mso-no-proof: yes">David
Love<BR></SPAN></FONT><st1:PersonName><FONT color=navy =
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; mso-no-proof: =
yes">davidlovepianos@comcast.net</SPAN></FONT></st1:PersonName><FONT
color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; mso-no-proof: yes">
</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"> <o:p></o:p></SPAN></FONT></P>
<DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'">Recently
faced the same problem on my first and only vertical hitch pin
conversion. Bass bichord hitch pins alternated fore and aft, but =
still
not enough space to make me feel comfortable picking a new
location. Old pins were reasonable tight, so I left them =
in place,
ground them flush with the top of the plate, and drilled the new holes =
down
through the center of the originals. 3/16 diameter (larger than =
the
originals at .156) and 9/16 deep (considerably deeper than =
originals).
Thus the top and the bottom of the new hole are in fresh cast
iron. Needed the drill press because the =
original pins
were harder than surrounding cast iron - couldn't push the drill in by =
hand. See photo. New pins will be 3/16 x 1", with =
7/16"
exposed. If I set the height of the new bass bridge cap =
correctly, the
loops will rest about 1/8 above the plate.
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'">Mike<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"> <o:p></o:p></SPAN></FONT></P></DIV></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"> <o:p></o:p></SPAN></FONT></P></DIV>
<BLOCKQUOTE
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: =
medium none; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; MARGIN-BOTTOM: 5pt; =
PADDING-BOTTOM: 0in; MARGIN-LEFT: 3.75pt; BORDER-LEFT: black 1.5pt =
solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I'm about to drill a =
plate for
vertical hitch pins. On the few plate I've done this to, I've always =
had
enough fore-and-aft room in the hitch pin area to place the new =
hitch pin at
a desirable location, and not be real close to the original hitch =
pin.
Unfortunately, on the plate I need to drill, the hitch pin area is
relatively narrow and I can't go very far fore or aft with the new =
location.
I can only assume that the original steel pin is a lot harder than =
the cast
iron and I must avoid hitting it. Agree? Any general advice on =
placing the
new hitch pins in a situation like this from those who have crossed =
this
bridge (or rather hitch pin area) before?</SPAN></FONT><FONT
face="MS Sans Serif" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"><o:p></o:p></SPAN></FONT></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"> </SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"></SPAN></FONT><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">I could
go immediately aft of the originals, but that would put all pins in =
one line
- although the originals held up for 100 years in that array. Should =
I just
do that and not worry about it?</SPAN></FONT><FONT face="MS Sans =
Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"><o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="MS =
Sans Serif"
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial =
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Terry =
Farrell</SPAN></FONT><FONT
face="MS Sans Serif" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'MS Sans =
Serif'"><o:p></o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></DIV></BLOCKQUOT=
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