<table cellspacing='0' cellpadding='0' border='0' background='none' style='font-family:arial;font-size:10pt;color:#000000;background-color:#ffffff;width:100%;'><tr><td valign='top' style='font: inherit;'><P>Knowing Adrian, he was kidding..<BR><BR></P>
<DIV><STRONG><EM><FONT face="comic sans ms" color=#0000bf size=3>Chris </FONT></EM></STRONG></DIV>
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<DIV> </DIV><BR><BR>--- On <B>Sun, 6/1/08, Ken Thompson <I><KTHOMPSON56@satx.rr.com></I></B> wrote:<BR>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">From: Ken Thompson <KTHOMPSON56@satx.rr.com><BR>Subject: Re: [NSRCA-discussion] YS-160 round 1...ding, ding<BR>To: "General pattern discussion" <nsrca-discussion@lists.nsrca.org><BR>Date: Sunday, June 1, 2008, 5:17 PM<BR><BR>
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<DIV>Actually if it was aluminum to aluminum, TIG, not MIG, would work...there's no weld that I'm aware of that will attach brass to aluminum...</DIV>
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<DIV>Just so it is known, I believe the original comment about MIG welding was in jest ;-)</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial"><B>From:</B> <A title=THERUPMAN@aol.com href="mailto:THERUPMAN@aol.com" target=_blank rel=nofollow>THERUPMAN@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org" target=_blank rel=nofollow>nsrca-discussion@lists.nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, June 01, 2008 7:02 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] YS-160 round 1...ding, ding</DIV>
<DIV><BR></DIV><FONT id=role_document face=Arial color=#000000 size=2>
<DIV>Troy and all,</DIV>
<DIV>That's fantastic information. If only I knew what MIG welding is.</DIV>
<DIV>BR in Nashville</DIV>
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<DIV>In a message dated 6/1/2008 6:47:41 P.M. Central Daylight Time, <A href="mailto:troy@troynewman.net" target=_blank rel=nofollow>troy@troynewman.net</A> writes:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>Adrian,<BR><BR>Mig Welding might work...I don't know...I always thought that MIG<BR>welding was for aluminum and Steel...like thin sheets or<BR>tubing...Stainless steel sinks and the likes are MIG welded. While I<BR>think MIG welding would work on a Header if you were good enough to do<BR>it, I don't think MIG is what you would use to put the Brass insert back<BR>into an Aluminum casting. The only thing you might be able to do is<BR>create a small mechanical stop as you melted the MIG "wire" over the top<BR>of the brass fitting. The weld would not penetrate down into the joint<BR>between the brass Injector Tube and the Aluminum head. Also MIG is very<BR>critical on having the surfaces clean and dry. It if difficult to get<BR>down in a hole that is about 1/8" diameter and clean it.<BR><BR>I
know there are some welder types out there. I'm not a smart guy on<BR>welding. I just know that there are different processes needed when the<BR>metals are different types. If it was Aluminum to Aluminum then I think<BR>MIG would work...but I don't think it's the best for that situation...I<BR>think Mig is used when you are building a Bead on the external surface.<BR>Not trying to get material into a recessed hole. I would think a Sweat<BR>joint like a plumber uses on copper pipe would be a better situation.<BR>The Filler rod or solder or what ever would penetrate the joint down<BR>into the recess and make a mechanical connection down in the hole.<BR>Welding a small bead over the top of the brass nipple with a MIG welder<BR>may hold for a while but I think it would fail in short order...<BR><BR>Sorry just not enough welding info in my brain.<BR><BR><BR>Troy<BR><BR><BR>-----Original Message-----<BR>From:
nsrca-discussion-bounces@lists.nsrca.org<BR>[mailto:nsrca-discussion-bounces@lists.nsrca.org] On Behalf Of<BR>adriancwong@earthlink.net<BR>Sent: Sunday, June 01, 2008 4:11 PM<BR>To: General pattern discussion<BR>Subject: Re: [NSRCA-discussion] YS-160 round 1...ding, ding<BR><BR>Oh, no, instead of JB Weld, I mig welded mine, is that OK?<BR><BR>-----Original Message-----<BR>>From: JShulman <jshulman@cfl.rr.com><BR>>Sent: Jun 1, 2008 6:41 PM<BR>>To: General pattern discussion <nsrca-discussion@lists.nsrca.org><BR>>Subject: Re: [NSRCA-discussion] YS-160 round 1...ding, ding<BR>><BR>>Thanks Troy. Noticed that there is no fuel line keeper, so gotta order <BR>>one of those. Motor still runs great with lots of power. The richer low<BR><BR>>end solved the higher issue instantly too, thanks again! I'm hoping<BR>that it only moves cause of the lack of the keeper, so we'll get that on<BR>and go from there. Worst case is
eventually we'll plug the line right<BR>into the head.<BR>><BR>>Regards,<BR>>Jason<BR>>www.jasonshulman.com<BR>>www.shulmanaviation.com<BR>>www.composite-arf.com<BR>><BR>>-----Original Message-----<BR>>From: nsrca-discussion-bounces@lists.nsrca.org <BR>>[mailto:nsrca-discussion-bounces@lists.nsrca.org]On Behalf Of Troy <BR>>Newman<BR>>Sent: Sunday, June 01, 2008 11:32 AM<BR>>To: General pattern discussion<BR>>Subject: Re: [NSRCA-discussion] YS-160 round 1...ding, ding<BR>><BR>><BR>>Jason,<BR>><BR>>Regardless of the peanut galleries comments here is the skinny.<BR>><BR>>There are two parts...the black plastic check valve....and then the <BR>>Brass Injector that goes into the head. The black plastic part can get <BR>>loose, IF the injector fuel line is allowed to flop around. This is why<BR><BR>>it has a clip on it. Some folks will remove the clip and the fuel <BR>>tubing is
allowed to flop. Also some folks seem to thing they can <BR>>remove the black plastic check valve and re-install it. Nope the <BR>>Plastic goes on one time and to remove it the plastic breaks out and <BR>>the hole is not larger from the barb damage.<BR>><BR>>The idea is to not mess with it.<BR>><BR>><BR>>There have been a few cases of mostly early 160's and mostly a couple <BR>>years ago when the brass nozzle came out of the head. I know of 3 of <BR>>these and one was in Japan, one in Australia and one in the USA.<BR>>Extremely rare, but clean it up and yes I have been told JB weld will <BR>>fix it. My understanding is that this nozzle is pressed in with some <BR>>kind of adhesive at the factory. So the JB weld is the same kind of <BR>>thing....You don't have that problem.<BR>><BR>>If the engine is allowed to hit the cowl of the model sometime the <BR>>black plastic check valve will get knocked
around....If it gets loose, <BR>>just remove it and hook the fuel tubing direct to the injector nozzle. <BR>>It will work fine. The check valve is there for long extended idles, <BR>>and quick throttle ups.....Think F-07 Double Avalanche. The check valve<BR><BR>>prevents a burp on throttle up.<BR>><BR>><BR>>If you engine is set properly you won't get the burp anyway...but if <BR>>its just a touch lean on the pump...then a tiny air bubble can migrate<BR><BR>>back into the injector fuel line. This is because the valve cover is <BR>>the air box...and is under pressure...so the high pressure keeps the <BR>>fuel from coming out of the injector until the valve on the engine <BR>>opens. When the valve opens the pump gives a squirt and the fuel comes<BR>out.....<BR>><BR>>At idle the engine is not using much fuel at all....and the injector <BR>>will leak a little fuel into the valve cover area....If the engine
is <BR>>too rich (pump)...this is what causes it to get a rough idle. If the <BR>>pump is too lean then there is not enough fuel in the line and the <BR>>pressure in the line is lower so the air box pressure pushes the fuel <BR>>back in the injector line and right at the very end of the in injector <BR>>line forms a little air bubble.<BR>><BR>><BR>>The black plastic check valve prevents this from happening.<BR>><BR>><BR>>So the long story aside if its flopping around pry it off with a large <BR>>flat blade screw driver, just slowly inch it off...then hook the fuel <BR>>line direct. It will work fine.<BR>><BR>>By the way the new 170's have a different clip on the injector line <BR>>that keeps the fuel tubing from flopping around. This keeps the black <BR>>plastic from turning and getting loose on the injector nozzle.<BR>><BR>><BR>>The peanut gallery can now continue their
comments.<BR>><BR>>Thanks<BR>>Troy Newman<BR>><BR>>-----Original Message-----<BR>>From: nsrca-discussion-bounces@lists.nsrca.org<BR>>[mailto:nsrca-discussion-bounces@lists.nsrca.org] On Behalf Of JShulman<BR>>Sent: Sunday, June 01, 2008 8:06 AM<BR>>To: General pattern discussion<BR>>Subject: Re: [NSRCA-discussion] YS-160 round 1...ding, ding<BR>><BR>>Oh yea... the check valve. Regs in front... duh. Where do I plug in the<BR><BR>>battery???<BR>><BR>>I'll check it and make sure I'm just seeing things. We're still <BR>>learning about the new YS's. Maybe it always swiveled and I just now<BR>noticed it.<BR>><BR>>Regards,<BR>>Jason<BR>>www.jasonshulman.com<BR>>www.shulmanaviation.com<BR>>www.composite-arf.com<BR>><BR>>-----Original Message-----<BR>>From: nsrca-discussion-bounces@lists.nsrca.org<BR>>[mailto:nsrca-discussion-bounces@lists.nsrca.org]On Behalf Of Mike
<BR>>Hester<BR>>Sent: Sunday, June 01, 2008 10:35 AM<BR>>To: General pattern discussion<BR>>Subject: Re: [NSRCA-discussion] YS-160 round 1...ding, ding<BR>><BR>><BR>>You mean the check valve? It is press fit. It swivels =)<BR>><BR>>As long as it's not loose, it's fine. Sometimes the fitting comes loose<BR><BR>>from the head where it's just pressed in. If that's the case, JB weld.<BR>>But the black part just presses on to that.<BR>><BR>>if you mean the part that attaches on to the pushrod tubes, it's just <BR>>plastic and if it's moving excessively, something might have broken.<BR>><BR>>-Mike<BR>><BR>>----- Original Message -----<BR>>From: "JShulman" <jshulman@cfl.rr.com><BR>>To: "NSRCA" <nsrca-discussion@lists.nsrca.org><BR>>Sent: Sunday, June 01, 2008 10:12 AM<BR>>Subject: [NSRCA-discussion] YS-160 round 1...ding, ding<BR>><BR>><BR>>> Sooooooooooo.... how do we
tighten up the regulator (black piece at <BR>>> valve<BR>>> cover) on the top of the motor? It seems that this one has come loose<BR><BR>>> as it will swivel back and forth.<BR>>><BR>>> BTW Chris... I am still flying electric <G><BR>>><BR>>> Regards,<BR>>> Jason<BR>>> www.jasonshulman.com<BR>>> www.shulmanaviation.com<BR>>> www.composite-arf.com<BR>>> No virus found in this outgoing message.<BR>>> Checked by AVG.<BR>>> Version: 7.5.524 / Virus Database: 269.24.4/1476 - Release Date:<BR>>> 5/31/2008<BR>>> 12:25 PM<BR>>><BR>>><BR>>> _______________________________________________<BR>>> NSRCA-discussion mailing list<BR>>> NSRCA-discussion@lists.nsrca.org<BR>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>>><BR>>><BR>>><BR>>><BR>>> E-mail message checked by Spyware Doctor
(5.5.0.178) Database<BR>version:<BR>><BR>>> 5.09950 http://www.pctools.com/spyware-doctor/<BR>><BR>><BR>><BR>><BR>><BR>>E-mail message checked by Spyware Doctor (5.5.0.178) Database version: <BR>>5.09950 http://www.pctools.com/spyware-doctor/<BR>>_______________________________________________<BR>>NSRCA-discussion mailing list<BR>>NSRCA-discussion@lists.nsrca.org<BR>>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>>No virus found in this incoming message.<BR>>Checked by AVG.<BR>>Version: 7.5.524 / Virus Database: 269.24.4/1476 - Release Date:<BR>>5/31/2008 12:25 PM<BR>><BR>>No virus found in this outgoing message.<BR>>Checked by AVG.<BR>>Version: 7.5.524 / Virus Database: 269.24.4/1476 - Release Date:<BR>>5/31/2008 12:25 PM<BR>><BR>><BR>>_______________________________________________<BR>>NSRCA-discussion mailing
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