[From nobody Wed Sep 5 05:05:09 2007 From: "J N Hiller" <jnhiller@earthlink.net> To: "NSRCA Mailing List" <nsrca-discussion@lists.nsrca.org> Subject: Re: [NSRCA-discussion] OS 120 AX Date: Wed, 5 Sep 2007 04:41:05 +0000 Content-Type: Multipart/mixed; boundary="NextPart_Webmail_9m3u9jl4l_28277_1188997496_1" --NextPart_Webmail_9m3u9jl4l_28277_1188997496_1 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C7EF3C.462B0850" This is a multi-part message in MIME format. ------=_NextPart_000_000C_01C7EF3C.462B0850 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit The stock bearings in both my 120-AX’es failed prematurely, maybe two cases of fuel. The first one had serious corrosion, even on the shaft under the rear bearing as if it wasn’t properly lubed during assembly. The other one just got loose, (excessive prop rock) so I quit running it. I got replacement bearings from the local bearing store and left the seals on and it still feels fine after maybe 6 gallons. I have never experienced this kind of premature failure before and I have been running OS motors for about 30 years. Are they trying to build too large of a displacement in too small of case? Jim Hiller -----Original Message----- From: nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]On Behalf Of John Pavlick Sent: Monday, September 03, 2007 8:40 PM To: NSRCA Mailing List Subject: Re: [NSRCA-discussion] OS 120 AX Bob, How much time is on it? We've had a few around here that ate the rear bearing in 50 - 100 flights. One of them ended up ruining the sleeve too (bearing debris). The solution is to replace the rear bearing with an OS 140Rx F.I. (sealed) bearing before it gets bad enough to cause other damage. The front bearing is a double sealed type already so you won't need to change that one. This is a really good running motor when you get the bearing thing straightened out. John Pavlick http://www.idseng.com ----- Original Message ----- From: Bob Richards <mailto:bob@toprudder.com> To: NSRCA Mailing List <mailto:nsrca-discussion@lists.nsrca.org> Sent: Monday, September 03, 2007 8:35 AM Subject: [NSRCA-discussion] OS 120 AX I acquired a plane with an OS 120AX installed, and seem to be having some issues with it. It came with an APC 16x8 prop and stock muffler. Is not running as well as I think it should, but I did figure out I had some bad fuel. I plan to go out again today and tinker with it some more. What fuel, prop, and what rpm figures should I be seeing? Thanks in advance. Bob R. _____ _______________________________________________ NSRCA-discussion mailing list NSRCA-discussion@lists.nsrca.org http://lists.nsrca.org/mailman/listinfo/nsrca-discussion ------=_NextPart_000_000C_01C7EF3C.462B0850 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <meta name=3DProgId content=3DWord.Document> <meta name=3DGenerator content=3D"Microsoft Word 9"> <meta name=3DOriginator content=3D"Microsoft Word 9"> <link rel=3DFile-List href=3D"cid:filelist.xml@01C7EF3C.45BB0870"> <link rel=3DEdit-Time-Data href=3D"cid:editdata.mso@01C7EF3C.45BB0870"> <!--[if !mso]> <style> v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} </style> <![endif]--><!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:DoNotRelyOnCSS/> </o:OfficeDocumentSettings> </xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:Zoom>0</w:Zoom> <w:DocumentKind>DocumentEmail</w:DocumentKind> <w:EnvelopeVis/> <w:DoNotOptimizeForBrowser/> </w:WordDocument> </xml><![endif]--> <style> <!-- /* Font Definitions */ @font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:1627421319 -2147483648 8 0 66047 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} p.MsoNormalIndent, li.MsoNormalIndent, div.MsoNormalIndent {margin-top:0in; margin-right:0in; margin-bottom:0in; margin-left:.5in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} a:link, span.MsoHyperlink {color:blue; text-decoration:underline; text-underline:single;} a:visited, span.MsoHyperlinkFollowed {color:blue; text-decoration:underline; text-underline:single;} p.MsoAutoSig, li.MsoAutoSig, div.MsoAutoSig {margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} p {margin-right:0in; mso-margin-top-alt:auto; mso-margin-bottom-alt:auto; margin-left:0in; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} span.EmailStyle19 {mso-style-type:personal-reply; mso-ansi-font-size:10.0pt; mso-ascii-font-family:Arial; mso-hansi-font-family:Arial; mso-bidi-font-family:Arial; color:navy;} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} --> </style> <!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1027"/> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1"/> </o:shapelayout></xml><![endif]--> </head> <body bgcolor=3Dwhite lang=3DEN-US link=3Dblue vlink=3Dblue = style=3D'tab-interval:.5in'> <div class=3DSection1> <p class=3DMsoNormal><span class=3DEmailStyle19><font size=3D2 = color=3Dnavy face=3DArial><span style=3D'font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Th= e stock bearings in both my 120-AX&#8217;es failed prematurely, maybe two cases = of fuel. The first one had serious corrosion, even on the shaft under the rear = bearing as if it wasn&#8217;t properly lubed during assembly. The other one just got = loose, (excessive prop rock) so I quit running it. I got replacement bearings = from the local bearing store and left the seals on and it still feels fine after = maybe 6 gallons.<o:p></o:p></span></font></span></p> <p class=3DMsoNormal><span class=3DEmailStyle19><font size=3D2 = color=3Dnavy face=3DArial><span style=3D'font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>I = have never experienced this kind of premature failure before and I have been = running OS motors for about 30 years. Are they trying to build too large of a displacement in too small of case?<o:p></o:p></span></font></span></p> <p class=3DMsoNormal><span class=3DEmailStyle19><font size=3D2 = color=3Dnavy face=3DArial><span style=3D'font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Ji= m Hiller <o:p></o:p></span></font></span></p> <p class=3DMsoNormal><span class=3DEmailStyle19><font size=3D2 = color=3Dnavy face=3DArial><span style=3D'font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><!= [if = !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p> <p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 = color=3Dblack face=3DTahoma><span = style=3D'font-size:10.0pt;font-family:Tahoma;color:black'>-----Original Message-----<br> <b><span style=3D'font-weight:bold'>From:</span></b> = nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]<b><span = style=3D'font-weight: bold'>On Behalf Of </span></b>John Pavlick<br> <b><span style=3D'font-weight:bold'>Sent:</span></b> Monday, September = 03, 2007 8:40 PM<br> <b><span style=3D'font-weight:bold'>To:</span></b> NSRCA Mailing = List<br> <b><span style=3D'font-weight:bold'>Subject:</span></b> Re: = [NSRCA-discussion] OS 120 AX</span></font></p> <p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 = face=3D"Times New Roman"><span style=3D'font-size:12.0pt'><![if = !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></p> <p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black'>Bob,</span></fon= t><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black'>&nbsp;How much time is on it? We've had a few around here that ate the rear = bearing in 50 - 100 flights. One of them ended up ruining the sleeve too (bearing = debris). The solution is to replace the rear bearing with an OS 140Rx F.I. = (sealed) bearing before it gets bad enough to cause other damage. The front = bearing is a double sealed type already so you won't need to change that one. This is = a really good running motor when you get the bearing thing straightened = out.</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black'>John Pavlick<br> <a = href=3D"http://www.idseng.com">http://www.idseng.com</a></span></font><fo= nt color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <div style=3D'border:none;border-left:solid black 1.5pt;padding:0in 0in = 0in 4.0pt'> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black'>----- Original Message ----- </span></font><font size=3D2 color=3Dblack = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial;color:black;mso-color-alt:win= dowtext'><o:p></o:p></span></font></p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;background:#E4E4E4;border:none;mso-border-left-alt:sol= id black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><b><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black; font-weight:bold'> <div style=3D'font-color:black'>From:</span></font></b><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black'> <a href=3D"mailto:bob@toprudder.com" title=3D"bob@toprudder.com">Bob = Richards</a> </span></font></div> <font size=3D2 color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family: Arial;color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>= <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><b><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black; font-weight:bold'>To:</span></font></b><font size=3D2 color=3Dblack = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial;color:black'> <a href=3D"mailto:nsrca-discussion@lists.nsrca.org" title=3D"nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</a> = </span></font><font size=3D2 color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial; color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><b><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black; font-weight:bold'>Sent:</span></font></b><font size=3D2 color=3Dblack = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial;color:black'> Monday, = September 03, 2007 8:35 AM</span></font><font size=3D2 color=3Dblack = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial;color:black;mso-color-alt:win= dowtext'><o:p></o:p></span></font></p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><b><font size=3D2 = color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black; font-weight:bold'>Subject:</span></font></b><font size=3D2 color=3Dblack face=3DArial><span = style=3D'font-size:10.0pt;font-family:Arial;color:black'> [NSRCA-discussion] OS 120 AX</span></font><font size=3D2 color=3Dblack = face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial;color:black;mso-color-alt:win= dowtext'><o:p></o:p></span></font></p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'><![if = !supportEmptyParas]>&nbsp;<![endif]></span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:black'>I = acquired a plane with an OS 120AX installed, and seem to be having some issues with = it. It came with an APC 16x8 prop and stock muffler. Is not running as well as = I think it should, but I did figure out I had some bad fuel. I plan to go out = again today and tinker with it some more.</span></font><font = color=3Dblack><span style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>What fuel, prop, and what rpm figures should I be seeing?</span></font><font = color=3Dblack><span style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>Thanks in advance.</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt: windowtext'><o:p></o:p></span></font></p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>Bob R.</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font><font color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> <div class=3DMsoNormal align=3Dcenter = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt: auto;margin-left:40.2pt;text-align:center;border:none;mso-border-left-alt= :solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:black'> <hr size=3D2 width=3D"100%" align=3Dcenter> </span></font></div> <p class=3DMsoNormal = style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; margin-left:40.2pt;border:none;mso-border-left-alt:solid black 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3D3 = color=3Dblack face=3D"Times New Roman"><span = style=3D'font-size:12.0pt;color:black'>__________________________________= _____________<br> NSRCA-discussion mailing list<br> NSRCA-discussion@lists.nsrca.org<br> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</span></font><fo= nt color=3Dblack><span = style=3D'color:black;mso-color-alt:windowtext'><o:p></o:p></span></font><= /p> </div> </div> </body> </html> ------=_NextPart_000_000C_01C7EF3C.462B0850-- --NextPart_Webmail_9m3u9jl4l_28277_1188997496_1 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ NSRCA-discussion mailing list NSRCA-discussion@lists.nsrca.org http://lists.nsrca.org/mailman/listinfo/nsrca-discussion --NextPart_Webmail_9m3u9jl4l_28277_1188997496_1-- ]