---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 06/09/16: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:50 AM - Re: (Richard Goode) 2. 04:29 PM - gear handle hiss (danbooker) 3. 04:51 PM - Re: gear handle hiss (doug sapp) 4. 06:27 PM - Brake drum wear info (doug sapp) ________________________________ Message 1 _____________________________________ Time: 04:50:46 AM PST US From: "Richard Goode" Subject: RE: Yak-List: While I suspect there are good sources of this in the US, it took us a lot of research to find a European source for high quality homes when our Russian supplies dried up. But we now have a good source, and charge Euro 45 =93 today $58 for sufficient material for the 18 tubes. They are 2 mm smaller outside diameter, so we have a supply nice plated clamps which are Euro 32 ($41) for 18. Richard Goode Aerobatics Rhodds Farm Lyonshall Hereford HR5 3LW Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Robert Schwartz Sent: 08 June 2016 21:22 Subject: Yak-List: Looking for a source of fresh high quality metric hose for the pushrods on yak 52 engine Thanks Sent from Yahoo Mail on Android -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ________________________________ Message 2 _____________________________________ Time: 04:29:57 PM PST US Subject: Yak-List: gear handle hiss From: "danbooker" Sometimes, not always, I have a hiss coming from behind the gear handle. Is there something back ther that needs mx once in a while? Also, who sells the brake reducing box overhaul kit (the little box under right side of pilot seat) -------- Daniel Booker "Stealth-Eagle Aviation" 2312457798 danbooker@hotmail.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=456998#456998 ________________________________ Message 3 _____________________________________ Time: 04:51:17 PM PST US From: doug sapp Subject: Re: Yak-List: gear handle hiss Dan, The pneumatic system (gear and flap valves in the cockpits) normally vent to the atmosphere via holes in these valves, that is the hiss you hear when the gear/flaps go up and down. You should hear it EVERY time the system cycles. It's really hard for me to determine what you need by your description "brake reducing box overhaul kit (the little box under right side of pilot seat)" This is why god invented part numbers! Check your parts books (Vol #1) or if you don't have a set go to my web site http://cj6.com/ and you will find a set there, or give me a call (509-826-4610) so I can better understand and make sure you get the correct parts. Doug On Thu, Jun 9, 2016 at 4:29 PM, danbooker wrote: > > Sometimes, not always, I have a hiss coming from behind the gear handle. > Is there something back ther that needs mx once in a while? Also, who > sells the brake reducing box overhaul kit (the little box under right side > of pilot seat) > > -------- > Daniel Booker > "Stealth-Eagle Aviation" > 2312457798 > danbooker@hotmail.com > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=456998#456998 > > ________________________________ Message 4 _____________________________________ Time: 06:27:55 PM PST US From: doug sapp Subject: Yak-List: Brake drum wear info Listers and Lurkers: I have always wondered if there was actually a published max wear measurement for the Yak/CJ brake drum. So today I decided to practice what I preach and sat down with a stack of manuals and started reading. It's amazing what can be found with a bit of due diligence. I found the info in the PT-6 Trainer Aircraft Overhaul Manual (Airframe Accessories). Oddly enough section 12-1 "Brake Disk" only yielded the minimum thickness of the brake pad, which is 8mm. Section 11-1 "Landing gear Wheel" explains the max number of and depth of groves in the brake drum and mentions that the drum can be turned to a MAXIMUM ID of 196mm. It goes on to say that if the drum is blank it should be turned out to 195mm (new dia). If you do the math this works out to just shy of .040 worth of wear. I am sure these numbers will be applicable to the Yak 18T,50,52 and the CJ6 and many others. Some of you may recall a shipment of brake drums which were found to be to small in the ID to fit over the pads. These must have been the blank drums as described in section 11-1. All good info. Best, Doug ------------------------------------------------------------------------------------- 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.