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<DIV><FONT size=2 face=Arial>In my case, it's a fairly simple problem. The
1.40L vibrates so much, that the stud unscrews from the head, leaving the header
dangling in space alongside the exhaust port. I have about a foot of
Teflon tubing between the outlet of the header, and the inlet of the Hatori
pipe. I also have their (NMP) header brace in place to try to help
stabilize the header. </FONT></DIV>
<DIV><FONT size=2 face=Arial>The engine has already, after about 6 flights,
broken a Johnson Header; that's why I am trying the NMP. I got the last
NMP Central had in stock, and they said that the person who was making them is
not doing so any more. (That's what I was told, anyway.) The
Hatori pipe is sitting on one mount, about halfway back on the pipe, and the
whole outfit is free to move back and forth along with the engine
movement. I had hoped that, with the entire mess moving, it would permit
the stud to stay screwed in the head. I'm worried lest the stud strip the
threads in the head. The instructions say that "some people have had the
header loosen" and to try a certain type of Permatex form-a-gasket
material. I've used this stuff before when I had a racing engine business,
but I certainly never used it in this type of application.</FONT></DIV>
<DIV><FONT size=2 face=Arial>It seems to me that the entire problem is caused by
the excessive engine vibration that the 1.40L is known for.</FONT></DIV>
<DIV><FONT size=2 face=Arial>Any help?</FONT></DIV>
<DIV><FONT size=2 face=Arial>Bill Glaze</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=troy@troynewman.net href="mailto:troy@troynewman.net">Troy Newman</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, November 04, 2009 5:39
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Looking
For Props & Header</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
don’t know what you mean by will it stay attached?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">The
new header is a wrap around style header like the previous NMP and the Hatori
822 style headers. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">All
of the 120-170 engines have the same head configuration (meaning same angle)
and same thread size. SO the new header will fit all 120-170
engines.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">There
is one exception. The 120AC has the air box on the back of the head. This
prevents the use of the wrap around style headers on this engine. Other than
that they are all the same.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">The
NMP header was a really good header for the application. When we were using
Teflon tubing to connect the header to the pipe it was excellent. The problem
was Hatori went to the newer style pipes that the header slides inside of the
neck of the pipe with the o-ring. The aluminum tubing used on the NMP header
was not as bullet proof in this application. Remember the Teflon when hot
would flex. Now the header and the pipe are attached to each other. The header
slides inside the pipe and the result is there is still movement but the
stress on the thin wall aluminum piping is higher. Breaking, and the header
would get a grove worn in it. Actually the o-ring would pinch the aluminum
tubing to a smaller diameter and the header-pipe combo would leak. The added
stress of vibration and the direct connection many folks would break the
header tubing.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">The
new header is similar to the Hatori in terms of connection to the pipe. So
that swedging ( shrinking of the dia at the o-ring) problem and the
leaking should be solved. In my setup its working well on the proto-type
headers. Next issue is the tubing being stronger to take the stress of the
direct connection. The solution is kind of unique and is working well. Some
more testing and maybe a few tweaks and its going to be a very good
replacement for the Hatori 822 and 823.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Troy<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B>On Behalf Of </B>Bill
Glaze<BR><B>Sent:</B> Wednesday, November 04, 2009 9:05 AM<BR><B>To:</B>
General pattern discussion<BR><B>Subject:</B> Re: [NSRCA-discussion] Looking
For Props & Header<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Troy:</SPAN><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Will the new header
stay attached to the 1.40 L? Bill Glaze</SPAN><o:p></o:p></P></DIV>
<BLOCKQUOTE
style="BORDER-BOTTOM: medium none; BORDER-LEFT: black 1.5pt solid; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; PADDING-LEFT: 4pt; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in">
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">----- Original
Message ----- <o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="BACKGROUND: #e4e4e4" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt"> <A
title=troy@troynewman.net href="mailto:troy@troynewman.net">Troy Newman</A>
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">To:</SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt"> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern
discussion</A> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Sent:</SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt"> Wednesday,
November 04, 2009 12:35 AM<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Subject:</SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt"> Re:
[NSRCA-discussion] Looking For Props &
Header<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
don’t believe there is such a prop made as the 18.1-11 Narrow. It doesn’t
exist. I may be wrong but I have been involved with running and testing the
APC props in the 18.1 series and WPN series. There is a prop that is
designated as just 18-11 and this has a narrower blade than the
18.1-11. The 18.1 series of props have a very wide blade. The 18-11 is
more like a 17-13 or 17-12 in terms of blade shape but its 18in dia and 11
pitch.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
know there is a 16.5-12 I just pulled one out in my box-o-props and it has a
profile like a narrow prop very similar to the 17-10N…however it doesn’t
have the designation as 16.5-12 narrow. It’s just called the 16.5-12. If you
handed it to me with the name scratched off and said it was a 16.5-12 I
would have said it was a Narrow. Same goes for the 18-11 regular it’s
a narrow essentially as well.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
don’t know for sure why the “W” designation or the “N” for narrow is left
off of some props and added to others. I think it has a lot to do with the
equations and program that is used to create the prop profile.
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">To
sum up the props APC has the prop if it is or has been produced. I
don’t think Fred throws any of the molds away. So if a prop was produced at
one time it might be possible with some convincing to get some of them
produced again. I have been to the factory where the props are produced. It
amazing how they are produced, and the quantity and quality of props
produced for a given size.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">You
may not be asking for it by the proper name/designation….the 16.5-12 (is
actually like a narrow) and the 18-11 is like a narrow version of the
18.1-11<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">As
for Headers…..the new header is in testing and is performing well. The jury
is still out, we are working hard to insure the bugs are worked out. Right
things are going well and real progress has been made in the last couple
months. It will be sooner rather than later from the looks of things on the
new headers.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
hope this helps answer the questions<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Troy
Newman<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B>On Behalf Of
</B>rjo626@aol.com<BR><B>Sent:</B> Tuesday, November 03, 2009 8:20
PM<BR><B>To:</B> nsrca-discussion@lists.nsrca.org<BR><B>Subject:</B>
[NSRCA-discussion] Looking For Props &
Header<o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
Hello all! I'm looking for APC 18.1x11 narrow, and 16.5x12 narrow.
Also,<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">anyone
have a good NMP pattern header they're willing to part with / sell? I've
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">tried
Central Hobbies and APC with no luck. Thanks a
bunch!<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
Later!<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
RJO<o:p></o:p></SPAN></P></DIV>
<DIV style="TEXT-ALIGN: center" class=MsoNormal align=center>
<HR align=center SIZE=2 width="100%">
</DIV>
<P
class=MsoNormal>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<o:p></o:p></P></BLOCKQUOTE></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE></BODY></HTML>