---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 09/23/13: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:13 AM - Re: Magneto Problem (Vic) 2. 04:51 AM - Re: Re: Magneto Problem (George Coy) 3. 05:30 AM - Re: Cloth stick boots (Kelley Monroe) 4. 06:13 AM - Re: Re: Magneto Problem (dabear) 5. 08:12 AM - Re: Magneto Problem (Vic) 6. 10:15 AM - Re: Air starting an M14P with high compression pistons (Gill Gutierrez) 7. 11:15 AM - Re: Air starting an M14P with high compression pistons (Bitterlich, Mark G CIV NAVAIR, WD) 8. 01:30 PM - Re: Cloth stick boots (Elmar & Manuela Hegenauer) ________________________________ Message 1 _____________________________________ Time: 04:13:06 AM PST US Subject: Yak-List: Re: Magneto Problem From: "Vic" Hi Steve, sorry, but I cannot see the logic when you stated that the engine sounded OK on one mag and not so on the second when later you diagnosed air leaks in the intake pipes. Suspecting some other cause Id love to learn what may be behind this logic ? Cheers Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=409034#409034 ________________________________ Message 2 _____________________________________ Time: 04:51:22 AM PST US From: "George Coy" Subject: RE: Yak-List: Re: Magneto Problem I think it has to do with an overly lean mixture and the flame fronts in the cylinder. Apparently one spark plug is not enough to adequately ignite the over lean mixture. George -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Vic Sent: Monday, September 23, 2013 7:11 AM Subject: Yak-List: Re: Magneto Problem Hi Steve, sorry, but I cannot see the logic when you stated that the engine sounded OK on one mag and not so on the second when later you diagnosed air leaks in the intake pipes. Suspecting some other cause Id love to learn what may be behind this logic ? Cheers Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=409034#409034 ________________________________ Message 3 _____________________________________ Time: 05:30:54 AM PST US From: "Kelley Monroe" Subject: Re: Yak-List: Cloth stick boots Are the boots the same for the control stick, the flap cylinder and the nose cylinder? ----- Original Message ----- From: Jon Boede To: yak-list@matronics.com Sent: Monday, September 23, 2013 12:20 AM Subject: FW: Yak-List: Cloth stick boots I finally gave up and made my own. I still had my notes, so I made a drawing and am attaching it along with the original Inkscape file. When you unfold your old boots you'll be surprised how much material goes into them. When printing the PDF be sure to click "Actual size" and not any kind of "fit" or "shrink" option. On 11x17" paper the drawing is 1:1 scale. Fabric stores have a section with slightly thinner canvas for outdoor furniture which works nicely for the boots. Also get a little scrap of leather about 15mm wide by 500mm long and cut it into 4 equal parts to make a cuff band around the top of the boot. Ironing after each fold makes things a LOT easier. It's pretty easy but meticulous work... it took me a couple of nights at the kitchen table to make all 4. They come out looking like there's no way they'll come together in the right way to make a nice boot, but they do. Make sure you get washers to go with the rivets to clamp the material well. I used a drill to make the holes... can't say that was the best way to do it. A punch would be better, and you can probably use the same punch for the eyelets. Eyelets can be found at the fabric store. Good luck! Jon ------------------------------------------------------------------------- ----- From: kelmonroe@comcast.net To: Yak-list@matronics.com Subject: Yak-List: Cloth stick boots Date: Sun, 22 Sep 2013 17:09:36 -0500 I am look for a set of the cloth boots for the control sticks in my CJ. Does anyone sell them pre-made? I checked with Doug and he doesn't have any. Thanks Kelley ________________________________ Message 4 _____________________________________ Time: 06:13:05 AM PST US From: "dabear" Subject: RE: Yak-List: Re: Magneto Problem It does work that way thought I can't explain it. If you have EGT for each cylinder, go out and do a mag check on each mag with the intake drain open. You'll see certain (I don't remember which) cylinders not completely fire. If you do the same test with the primer open (tilted to the side), you'll see cylinder 9 go bad. Bear -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Vic Sent: Monday, September 23, 2013 7:11 AM Subject: Yak-List: Re: Magneto Problem Hi Steve, sorry, but I cannot see the logic when you stated that the engine sounded OK on one mag and not so on the second when later you diagnosed air leaks in the intake pipes. Suspecting some other cause Id love to learn what may be behind this logic ? Cheers Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=409034#409034 ________________________________ Message 5 _____________________________________ Time: 08:12:04 AM PST US Subject: Yak-List: Re: Magneto Problem From: "Vic" Well, I was believing the engine did quite OK on the "good" mag and sputtered on the bad, assuming, the good mag fired just one spark per pot and the other mag was earthed. So this would not help with the phenomenon. Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=409054#409054 ________________________________ Message 6 _____________________________________ Time: 10:15:07 AM PST US From: "Gill Gutierrez" Subject: RE: Yak-List: Air starting an M14P with high compression pistons Yes, we have several at DVT. Start is the same. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Royden Heays Sent: Friday, September 20, 2013 7:27 PM Subject: Yak-List: Air starting an M14P with high compression pistons Anyone with high compression pistons in an M14P with the Russian air start system: does the air start handle the higher compression with any added difficulty? Is the start procedure any different? Any other comments on the pros and cons of high compression pistons welcome! Royden Heays Yak 55M ________________________________ Message 7 _____________________________________ Time: 11:15:16 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: RE: Yak-List: Air starting an M14P with high compression pistons Maybe nit-picking, but a comment if I may: The subject line is "High Compression Pistons". It really should read: "Slightly Higher Compression Pistons". :-) So.... Kind of a misnomer. The pistons being discussed are only slightly higher compression, not HIGH compression. I am sure Jill can give the exact value, but it is only going from about 7 to 8 on the compression ratio. Above 8 is not recommended on any blown engine, and even 8 is pushing it just a tad by racing engine standards anyway. That said, the M-14P does not push a huge amount of blower boost like you would find on a drag engine, or even something like a GSO-480. In any case, that's why going from 7 to 8 does not really impact any starting effort. It's just not a huge change. Real "High Compression" pistons are usually above 10 to 1 and are never found in a blown engine. What really should attract anyone regarding these pistons is not just the small compression change, but the quality of the material. Especially the aluminum pistons themselves, their expansion specs as compared to the Russian material, along with the piston ring designs. All substantial improvements, resulting in more power, lower oil consumption, better longevity, etc. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Gill Gutierrez Sent: Monday, September 23, 2013 13:13 Subject: RE: Yak-List: Air starting an M14P with high compression pistons Yes, we have several at DVT. Start is the same. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Royden Heays Sent: Friday, September 20, 2013 7:27 PM Subject: Yak-List: Air starting an M14P with high compression pistons Anyone with high compression pistons in an M14P with the Russian air start system: does the air start handle the higher compression with any added difficulty? Is the start procedure any different? Any other comments on the pros and cons of high compression pistons welcome! Royden Heays Yak 55M ________________________________ Message 8 _____________________________________ Time: 01:30:49 PM PST US From: Elmar & Manuela Hegenauer Subject: Yak-List: Re: Cloth stick boots The cloth boots are sold, thank you. cheers Elmar ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.