---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 08/13/20: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:58 AM - Re: Carb and fuel pump membrane replacement (1906) 2. 10:58 AM - Russian plug life and thread size (1906) 3. 11:16 AM - Re: Re: Carb and fuel pump membrane replacement (Mark Pennington) 4. 11:51 AM - Re: Russian plug life and thread size (Anthony Savarese) 5. 12:58 PM - Re: Russian plug life and thread size (Mark Pennington) ________________________________ Message 1 _____________________________________ Time: 10:58:23 AM PST US Subject: Yak-List: Re: Carb and fuel pump membrane replacement From: "1906" Richard confirmed that the carburetor has to be removed. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=497734#497734 ________________________________ Message 2 _____________________________________ Time: 10:58:49 AM PST US Subject: Yak-List: Russian plug life and thread size From: "1906" What is the rough life of the Russian plugs? Or is it just a perpetual IRAN? How do you determine they need to be replaced? Also the manual says the thread size is M14x1.25 but none of the thread chasers in that size I tried seem to work. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=497735#497735 ________________________________ Message 3 _____________________________________ Time: 11:16:35 AM PST US From: Mark Pennington Subject: Re: Yak-List: Re: Carb and fuel pump membrane replacement Thank you for the confirmation. It was my plan to remove the carb to make sure everything was done as easily as possible. I didn=99t want to damage the membranes. I plan to take many photos of the process. Thank you again. Mark Pennington On Thu, Aug 13, 2020 at 2:08 PM 1906 wrote: > > > Richard confirmed that the carburetor has to be removed. > > > Read this topic online here: > > > http://forums.matronics.com/viewtopic.php?p=497734#497734 > > =========== > > =========== > > =========== > > =========== > > =========== > > ________________________________ Message 4 _____________________________________ Time: 11:51:51 AM PST US From: Anthony Savarese Subject: Re: Yak-List: Russian plug life and thread size Look for a very worn ground element. This thread chaser works just fine. https://www.ecstuning.com/b-oem-tools-parts/metric-spark-plug-thread-chaser/ oem25124~omt/?gclid=EAIaIQobChMIsoGJ7uiY6wIVAYvICh3BswMXEAQYBSABEgLpBPD_Bw E The reason you=99re having difficulty cleaning the threads is because t he Russian plugs do not fit flush with the combustion chamber. Thus the las t hole threads tend to build up carbon which makes it difficult to clean the threads with the thread chaser. Plus the Russian plugs are a =9Ccold =9D plug which you can clearly see when you pull the spark plugs and s ee the black soot around the insulator and firing element. This may help you understand how to read your spark plugs. https://www.championautoparts.com/Parts-Matter/automotive-repair-and-mainten ance/how-to-read-spark-plugs.html Dennis Sent from my iPhone > On Aug 13, 2020, at 2:00 PM, 1906 wrote: > > > What is the rough life of the Russian plugs? Or is it just a perpetual IRA N? How do you determine they need to be replaced? > > Also the manual says the thread size is M14x1.25 but none of the thread ch asers in that size I tried seem to work. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=497735#497735 > > > > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= ========================== ========= > > > ________________________________ Message 5 _____________________________________ Time: 12:58:23 PM PST US From: Mark Pennington Subject: Re: Yak-List: Russian plug life and thread size 1906 I had a similar issue with thread chasing on my plane. Once I ran the thread chaser through the hole all was well.. The thread chaser that Dennis referenced is the exact one I purchased on his recommendation. Also, before you purchase a full set of russian plugs you may want to consider swapping over to the auto plug conversion. Worth every penny. If you want all of the detail you can find a number of owners here that have the auto plugs and wires and love them. Just a thought if you are about to purchase a bunch of new russian plugs, you may want to consider getting rid of the weak link in the ignition system and making your starts etc more reliable. Now for the fish story. Since I put the auto plugs in I am flying 10 knots faster and cut my fuel burn by 30%....... none of which is true. It is just a more reliable system. Mark On Thu, Aug 13, 2020 at 2:56 PM Anthony Savarese < dsavarese0812@bellsouth.net> wrote: > Look for a very worn ground element. > > This thread chaser works just fine. > > > https://www.ecstuning.com/b-oem-tools-parts/metric-spark-plug-thread-chas er/oem25124~omt/?gclid=EAIaIQobChMIsoGJ7uiY6wIVAYvICh3BswMXEAQYBSABEgLpBP D_BwE > > The reason you=99re having difficulty cleaning the threads is becau se the > Russian plugs do not fit flush with the combustion chamber. Thus the las t > hole threads tend to build up carbon which makes it difficult to clean th e > threads with the thread chaser. Plus the Russian plugs are a =9Cco ld=9D plug > which you can clearly see when you pull the spark plugs and see the black > soot around the insulator and firing element. > > This may help you understand how to read your spark plugs. > > > https://www.championautoparts.com/Parts-Matter/automotive-repair-and-main tenance/how-to-read-spark-plugs.html > > Dennis > > Sent from my iPhone > > On Aug 13, 2020, at 2:00 PM, 1906 wrote: > > > What is the rough life of the Russian plugs? Or is it just a perpetual > IRAN? How do you determine they need to be replaced? > > Also the manual says the thread size is M14x1.25 but none of the thread > chasers in that size I tried seem to work. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=497735#497735 > > > ======================== ==bsp; ================= ========= > p; -Matt > Dralle====================== ======================= > > ------------------------------------------------------------------------------------- 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.