<div>I've got a couple gallons through the new engine and I think it's now properly broken in. The mid-range got a bit rich and clears abrutply with a jump in rpm. I leaned the low end a little (from 12 to 1 o'clock position) and the downline braking disappeared. Speed control with this set-up is difficult. With the low end a bit rich speed is inconsistent on the horizontal lines but downlines are good. With the low end a bit lean downlines are too fast but the horizontal lines are good. </div> <div> </div> <div>I'm at 26.25" from the plug and turning the 15x11x4 at 8100rpm. </div> <div> </div> <div>Is there any benift to lengthening the pipe further? </div> <div> </div> <div>Colin.<BR><BR><B><I>Ron Lockhart <ronlock@comcast.net></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <META content="MSHTML 6.00.2800.1543" name=GENERATOR> <DIV><FONT face=Arial size=2>My
Aeroslave set up on OS 140 is maybe 1/2 inch longer.</FONT></DIV> <DIV><FONT face=Arial size=2>Works nice, tachs 7,800 on ground on 15.75 x 10 3b.</FONT></DIV> <DIV><FONT face=Arial size=2>Idle setting is very lean- I keep leaning it till it becomes hard to start, then richen a bit.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Ron Lockhart</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=wgalligan@goodsonacura.com href="mailto:wgalligan@goodsonacura.com">Wayne Galligan</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV> <DIV style="FONT:
10pt arial"><B>Sent:</B> Tuesday, June 13, 2006 5:13 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Break-in procedure for OS140</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Colin,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>What is the length of you setup from the plug to the baffle inside? If I remember right the baflle is 15" from the inlet.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Mine is at 26" from the plug and I finaLy was able to get a real good down line braking and richen the low end out. The Aeroslave pipe will make a ton of power in a shorter length but the engine gets peaky and will come on the pipe or really unload. One thing about this pipe. If it is burbly rich in the midrange the length is too short.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT
face=Arial size=2>Wayne Galligan</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=cchariandy@yahoo.ca href="mailto:cchariandy@yahoo.ca">colin chariandy</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, June 13, 2006 11:40 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Break-in procedure for OS140</DIV> <DIV><BR></DIV> <DIV>Worked like a charm!!</DIV> <DIV> </DIV> <DIV>The engine ran flawlessly on the first flight after the run-in. I'm using the Aeroslave pipe and 15.5x12 4 blade. I'm about 1 3/4 out with the high
end and parallel with the cylinder for the low end screw. All seems OK.... good/slightly rich top end, reliable idle, rich in the middle but accelerates with no problem, good downline braking. When should I start moving the low end screw and where will the final position be ...typically?</DIV> <DIV> </DIV> <DIV>Colin.<BR><BR><B><I>Mike Hester <kerlock@comcast.net></I></B> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <META content="MSHTML 6.00.2900.2873" name=GENERATOR> <STYLE></STYLE> <DIV><FONT face=Arial size=2>Correction: Bottom end needle.....1/16 of a turn, not 1/8. The bottom end screw is VERY sensitive.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>-Mike</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt
arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=kerlock@comcast.net href="mailto:kerlock@comcast.net">Mike Hester</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, June 06, 2006 11:42 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Break-in procedure for OS140</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>I am going to write a full "care and feeding" article for the OS 140 for the July K-Factor, but here's a good start.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>First, set your low end screw parallel to the cylinder. 12 o'clock, straight up and down. leave it there for the duration of the break in.</FONT></DIV> <DIV><FONT
face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Use an APC 17x10N prop. use an OS F plug.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>back the high end needle out 2 full turns. if you plane has a chin cowl, remove it. This engine gets hot for the first run or 2 on the ground.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Crank the engine with a very high idle. Remove the igniter and then advance the throttle to full power after about a minute. It should be spitting rich.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Turn the high end needle until it gets some good RPM but still very rich. You should be putting out some serious smoke. let it run this way for about 5 minutes, no more.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Shut the engine off, and let it cool
for about 1/2 hour. the more, the better.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Fill the tank, crank it again, run it to full. This time go in on the needle about 2 clicks and use that for the reference. About every 30-45 seconds, lean it until it goes to max RPM, and not ANY further. Let it run this way for about 5 seconds, and richen it back up. Cycle it this way for about 7 minutes. Shut down the engine, let it cool again.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Crank the 3rd time, and run it at the same setting for about 2 minutes. Now lean it a couple of more clicks, and it should be still putting out some serious smoke, but a little closer to full. Step back, and let it run wide open for a minute, then begin throttling it back and forth every minute or so. Run the tank out like this.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT
face=Arial size=2>put it together and go fly it. Don't touch the needle. When you get to the bottom of the 1st gallon, go in with the needle ONE click every flight until you get max power. When your low end changes, set the low end (always more lean, but not a whole lot. When you play with that bottom end, a little goes a long way. Like 1/8 of a turn or so.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>There are a lot of diffferent ways to do it; some people just set it rich and fly. This way works every time though, and the engines last longer.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>have fun,</FONT></DIV> <DIV><FONT face=Arial size=2>-Mike</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND:
#e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=cchariandy@yahoo.ca href="mailto:cchariandy@yahoo.ca">colin chariandy</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, June 06, 2006 10:55 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Break-in procedure for OS140</DIV> <DIV><BR></DIV> <DIV>Just got a new OS140. I have'nt broken in one for 5 years...what's the best/current practice for break-in?</DIV> <DIV> </DIV> <DIV>Colin.</DIV> <DIV>__________________________________________________<BR>Do You Yahoo!?<BR>Tired of spam? Yahoo! Mail has the best spam protection around <BR><A href="http://mail.yahoo.com/">http://mail.yahoo.com</A> <DIV> <HR> <DIV></DIV>_______________________________________________<BR>NSRCA-discussion mailing list<BR><A
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