---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 07/02/21: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:10 AM - Aeroshell (RedX) 2. 12:49 PM - Engine roughness at low power, 82% RPM? (1906) 3. 01:02 PM - Re: Engine roughness at low power, 82% RPM? (Anthony Savarese) 4. 01:10 PM - Re: Engine roughness at low power, 82% RPM? (Anthony Savarese) 5. 01:12 PM - Re: Engine roughness at low power, 82% RPM? (1906) 6. 01:34 PM - Re: Engine roughness at low power, 82% RPM? (1906) 7. 02:30 PM - Virginia Bader framed pictures (Richard Hess) 8. 03:17 PM - Re: Re: Engine roughness at low power, 82% RPM? (Anthony Savarese) 9. 05:03 PM - Re: Re: Engine roughness at low power, 82% RPM? (Mark Bitterlich) 10. 06:48 PM - Re: Re: Engine roughness at low power, 82% RPM? (George Coy) ________________________________ Message 1 _____________________________________ Time: 05:10:16 AM PST US Subject: Yak-List: Aeroshell From: "RedX" See attached; -------- Red X Yak Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502681#502681 Attachments: http://forums.matronics.com//files/chemtool_rockton_fire__notice_to_aeroshell_distributorscustomers_732.pdf ________________________________ Message 2 _____________________________________ Time: 12:49:24 PM PST US Subject: Yak-List: Engine roughness at low power, 82% RPM? From: "1906" One of the M14Ps I fly seems to be rougher (not quite a popping sound but different than usual and has added vibration) close to landing. 82%, low throttle (very first notch on the Russian manifold pressure gauge or so). Both have MTV9 props which tend to prop brake during these conditions but the other engine is fairly smooth in comparison. It does have less than 200 hours on the engine whereas this one is about 620. Any ideas? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502686#502686 ________________________________ Message 3 _____________________________________ Time: 01:02:40 PM PST US From: Anthony Savarese Subject: Re: Yak-List: Engine roughness at low power, 82% RPM? Check fir intake leaks. Especially if it has an intake drain kit. Also check all intake gland nuts. Dennis Sent from my iPhone > On Jul 2, 2021, at 3:51 PM, 1906 wrote: > > > One of the M14Ps I fly seems to be rougher (not quite a popping sound but different than usual and has added vibration) close to landing. 82%, low throttle (very first notch on the Russian manifold pressure gauge or so). Both have MTV9 props which tend to prop brake during these conditions but the other engine is fairly smooth in comparison. It does have less than 200 hours on the engine whereas this one is about 620. > > Any ideas? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=502686#502686 > > > > > > > > > ________________________________ Message 4 _____________________________________ Time: 01:10:41 PM PST US From: Anthony Savarese Subject: Re: Yak-List: Engine roughness at low power, 82% RPM? Also check the condition of the manifold pressure hose and primer hose. Dennis Sent from my iPhone > On Jul 2, 2021, at 4:04 PM, Anthony Savarese wrote: > > Check fir intake leaks. Especially if it has an intake drain kit. Also check all intake gland nuts. > Dennis > > Sent from my iPhone > >> On Jul 2, 2021, at 3:51 PM, 1906 wrote: >> >> >> One of the M14Ps I fly seems to be rougher (not quite a popping sound but different than usual and has added vibration) close to landing. 82%, low throttle (very first notch on the Russian manifold pressure gauge or so). Both have MTV9 props which tend to prop brake during these conditions but the other engine is fairly smooth in comparison. It does have less than 200 hours on the engine whereas this one is about 620. >> >> Any ideas? >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=502686#502686 >> >> >> >> >> >> >> >> >> ________________________________ Message 5 _____________________________________ Time: 01:12:05 PM PST US Subject: Yak-List: Re: Engine roughness at low power, 82% RPM? From: "1906" Thanks Dennis. I figured it might be an intake leak. Will do. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502688#502688 ________________________________ Message 6 _____________________________________ Time: 01:34:12 PM PST US Subject: Yak-List: Re: Engine roughness at low power, 82% RPM? From: "1906" One more thing - is there an easy way to determine which intake tube might be the culprit? Or might as well do the gaskets on all? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502690#502690 ________________________________ Message 7 _____________________________________ Time: 02:30:34 PM PST US From: Richard Hess Subject: Yak-List: Virginia Bader framed pictures Guys,A bitter sweet decision but I sold my hangar/apartment at Windward Pointe in Alabama this week. Four grandkids and a lot of flying lately made it the right decision. I have a number of pictures that I bought from Virginia Bader through the years. They include the following: Air Force F-15 Nowhere to HideArmy UH-60 New Dawn (helo in Afghanistan)Navy F-4 Dragon SlayerMarine A-4s Triple ThreatRobin Olds F-4 coming off the steel mill strike in N Vietnam Leader of the PackOriginal John Taylor oil of B-25s on the RangerA Robin Olds montageP-51 cutaway and four smaller pics of my heroes: Chuck Yeager, Robin Olds, Bob Hoover (with his signature) and Bud Anderson (with his signature) This is a museum quality collection. Many of them cost upwards of $1000 each. I simply don't have enough room in my house for all of these and I want to see them go to good homes where they will be appreciated. Email me off line and I'll be happy to send a picture of any you are interested in and to talk price. Thanks Richard Hesshess737@aol.comCell 404-964-4885 ________________________________ Message 8 _____________________________________ Time: 03:17:27 PM PST US From: Anthony Savarese Subject: Re: Yak-List: Re: Engine roughness at low power, 82% RPM? The only way I know is to spray the suspected area with propane or carb cleaner with the engine running. But carb cleaner is flammable. Best to troubleshoot this when the engine is cold. So if you use carb cleaner be very careful. What youre looking for is the engine RPM to increase if there is a leak wherever you spay. Dennis Sent from my iPhone > On Jul 2, 2021, at 4:36 PM, 1906 wrote: > > > One more thing - is there an easy way to determine which intake tube might be the culprit? Or might as well do the gaskets on all? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=502690#502690 > > > > > > > > > ________________________________ Message 9 _____________________________________ Time: 05:03:07 PM PST US Subject: Re: Yak-List: Re: Engine roughness at low power, 82% RPM? 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You could use a propane torch but dont lite the torch. Just use it like a sniffer and just wave the propane gas around the joints I will do the same thing with a lot less danger. George Coy Sent from my iPad > On Jul 2, 2021, at 6:22 PM, Anthony Savarese wrote: > > > The only way I know is to spray the suspected area with propane or carb cleaner with the engine running. But carb cleaner is flammable. Best to troubleshoot this when the engine is cold. So if you use carb cleaner be very careful. What youre looking for is the engine RPM to increase if there is a leak wherever you spay. > Dennis > > Sent from my iPhone > >> On Jul 2, 2021, at 4:36 PM, 1906 wrote: >> >> >> One more thing - is there an easy way to determine which intake tube might be the culprit? Or might as well do the gaskets on all? >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=502690#502690 >> >> >> >> >> >> >> >> >> > > > > > ------------------------------------------------------------------------------------- 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.