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<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff
size=2>Bob,</FONT></SPAN></DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff size=2>there
was short discussion about drilling the prop hub for larger OD through prop
nut.</FONT></SPAN></DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff size=2>I also
have similar situation. People used step drill on drill press. Place
the prop accurately on the bed, clamp it, drill through
slowly.</FONT></SPAN></DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff size=2>No
other methods that I know of.</FONT></SPAN></DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff size=2>Just
curious, why are you using 813-A? It is shown as short shaft double jam
nut. I don't know if there is any applications that needs of short shaft
nuts.</FONT></SPAN></DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff size=2>I
asked this list a while ago regarding the Tru Turn prop nut 814 and 813 because
Tru Turn website shows 813-A for 140s. Almost everyone who responsed were
using 814A. Still using the 814A because I have a few of those for all YS
4-strokes, 63, 91, 120 140s all have same thread.</FONT></SPAN></DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=335222201-07072003><FONT face=Arial color=#0000ff
size=2>Ihncheol Park</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org]<B>On Behalf Of
</B>rwantz2@comcast.net<BR><B>Sent:</B> Sunday, July 06, 2003 5:10
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Truing APC Props and
drilling prop hubs?<BR><BR></FONT></DIV>
<DIV><FONT face=Arial>Mounted a new prop last night - APC 16.5-12W, and when I
screwed it onto the crankshaft, I noticed it wasn't turning true. Upon
inspection, I discovered that the hole in the hub was not centered. It
looked ok from the drive washer side but the front of the hub was off by a
good 1/16". Obviously this prop wouldn't track true.</FONT></DIV>
<DIV><FONT face=Arial>I always ASSUMED these were molded in and were pretty
accurate, so never checked them. </FONT></DIV>
<DIV><FONT face=Arial>I opened up the front of the hub a little,
without touching the rear, and let the thrust washer true up the prop.
How do most of you true props?</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Also, I just got the Tru-turn TT-813-A double jam nut
spinner adapter for YS 140 engines. I always used the standard 814
double jam nut in the past, but the 813 requires a 1/2" hole be drilled into
the front of the prop hub (at least part way). What's the best way to do
this?</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Thanks,</FONT></DIV>
<DIV><FONT face=Arial>Bob</FONT></DIV></BLOCKQUOTE></BODY></HTML>