---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 08/10/17: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:15 AM - Re: cj6 gearbox (Jacquescj6) 2. 08:46 AM - Re: Re: cj6 gearbox (Richard Goode) 3. 10:06 AM - Re: cj6 gearbox (Bitterlich, Mark G CIV NAVAIR, WD) 4. 04:08 PM - Yak 52TW Unidentified Parts (ggtyler) 5. 09:07 PM - Re: Re: cj6 gearbox (Richard Goode) ________________________________ Message 1 _____________________________________ Time: 08:15:46 AM PST US Subject: Yak-List: Re: cj6 gearbox From: "Jacquescj6" I agree with you Richard that is why I would rather want to change out the gearbox of the engine that had the prop strike. Just wanted to know if it is a big job and if there is anything I need to be on the look out for. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471703#471703 ________________________________ Message 2 _____________________________________ Time: 08:46:55 AM PST US From: "Richard Goode" Subject: RE: Yak-List: Re: cj6 gearbox I can only speak for the Russian engines, but I have little doubt that the Chinese engines, although many parts are different, are in practical terms extremely similar, and from that point of view, changing the gearbox is extremely simple. Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW United Kingdom Tel: +94 (0) 81 241 5137 (Sri Lanka) Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com Im currently in Sri Lanka but this Mail is working,and my local phone is +94 779 132 160. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jacquescj6 Sent: Thursday, August 10, 2017 8:45 PM Subject: Yak-List: Re: cj6 gearbox I agree with you Richard that is why I would rather want to change out the gearbox of the engine that had the prop strike. Just wanted to know if it is a big job and if there is anything I need to be on the look out for. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471703#471703 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ________________________________ Message 3 _____________________________________ Time: 10:06:35 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: Yak-List: Re: cj6 gearbox For what it is worth, the Russian mechanics, and the Russian trained mechanics of the M-14 family that I have spoken with have told me to also check the timing on the engine after a prop strike. Look for even the smallest amount of change. This due to the fact that on the M-14, the accessory drive shaft is very easy to "twist" due to the fact that it is spinning a lot of mass, and a sudden jerk can cause the shaft to twist thus changing the timing. I don't know about the Housai but I suspect it is the same design. If the timing has changed at all, a major inspection is called for. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jacquescj6 Sent: Thursday, August 10, 2017 11:15 AM Subject: [Non-DoD Source] Yak-List: Re: cj6 gearbox I agree with you Richard that is why I would rather want to change out the gearbox of the engine that had the prop strike. Just wanted to know if it is a big job and if there is anything I need to be on the look out for. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471703#471703 ________________________________ Message 4 _____________________________________ Time: 04:08:19 PM PST US Subject: Yak-List: Yak 52TW Unidentified Parts From: "ggtyler" Well..sorta unidentified. These came in a bag with my TW. I'm pretty sure these are a solution for the wheel fairing issues on the 52TW. Anyone have any pics of how they mount up, or are supposed to work? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471723#471723 Attachments: http://forums.matronics.com//files/img_6449_225.jpg ________________________________ Message 5 _____________________________________ Time: 09:07:01 PM PST US From: "Richard Goode" Subject: RE: Yak-List: Re: cj6 gearbox Mark is absolutely correct it is critical to check the magneto timing very carefully after a ground-strike, since this will provide a very clear indication of torsional damage to the supercharger drive. But what is most likely to suffer are the satellite gears in the gearbox, so these really should be crack tested. Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW United Kingdom Tel: +94 (0) 81 241 5137 (Sri Lanka) Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com Im currently in Sri Lanka but this Mail is working,and my local phone is +94 779 132 160. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV NAVAIR, WD Sent: Thursday, August 10, 2017 10:36 PM Subject: Yak-List: Re: cj6 gearbox --> For what it is worth, the Russian mechanics, and the Russian trained mechanics of the M-14 family that I have spoken with have told me to also check the timing on the engine after a prop strike. Look for even the smallest amount of change. This due to the fact that on the M-14, the accessory drive shaft is very easy to "twist" due to the fact that it is spinning a lot of mass, and a sudden jerk can cause the shaft to twist thus changing the timing. I don't know about the Housai but I suspect it is the same design. If the timing has changed at all, a major inspection is called for. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jacquescj6 Sent: Thursday, August 10, 2017 11:15 AM Subject: [Non-DoD Source] Yak-List: Re: cj6 gearbox I agree with you Richard that is why I would rather want to change out the gearbox of the engine that had the prop strike. Just wanted to know if it is a big job and if there is anything I need to be on the look out for. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471703#471703 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ------------------------------------------------------------------------------------- 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.