---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 07/06/08: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:02 AM - Re: Anyone in Madison? (GreasySideUp) 2. 02:32 PM - Yak spares for sale... UK based. (Nigel Willson) 3. 03:24 PM - YAK-52 Attitude Indicator (AI) (Fred Schlafly) 4. 07:17 PM - Re: YAK-52 Attitude Indicator (AI) (Roger Kemp MD) 5. 08:02 PM - Re: Pop-off valve (Roger Kemp MD) ________________________________ Message 1 _____________________________________ Time: 10:02:14 AM PST US Subject: Yak-List: Re: Anyone in Madison? From: "GreasySideUp" Thanks fellas!!!! I have pointed him to this thread so hopefully he'll be in touch soon. I think he may be considering Pipers and Cessnas and the like so try and sway him a little to the dark side of Russian ownership!! Thanks again, it is much easier to describe when he is looking at one up close. -j Read this topic online here: http://forums.matronics.com/viewtopic.php?p=191459#191459 ________________________________ Message 2 _____________________________________ Time: 02:32:33 PM PST US From: "Nigel Willson" Subject: Yak-List: Yak spares for sale... UK based. Recent radio problems (unrelated to the items below due to box changes not curing it) have led to the installation of a new modern radio. Consequently, I have the following for sale: Sensible offers please. Items are in the UK. Postage costs on application once a sale price has been agreed since some items are quite heavy to post. All items from Yak52. BAKLAN 5 radio BAKLAN 5 Radio Frequency selector (front cockpit pilot control) Intercom unit (box with multi-way connector that sits between front and back cockpits). Intercom selector panel (with intercom volume and adf volume control and switches). ADF unit (from rear of aircraft). ADF control panel (front cockpit). Email me off list if easier. nigel@yakdisplay.com ________________________________ Message 3 _____________________________________ Time: 03:24:34 PM PST US From: "Fred Schlafly" Subject: Yak-List: YAK-52 Attitude Indicator (AI) Has anyone had these AI rebuilt or found a suitable replacement for them, such as the Falcon electric AI for about $1200, etc? Fred Schlafly 1995 YAK-52 ________________________________ Message 4 _____________________________________ Time: 07:17:20 PM PST US From: "Roger Kemp MD" Subject: RE: Yak-List: YAK-52 Attitude Indicator (AI) Rebuilt no. Changed mine out for a Dynon D10A. Others have put in Blue Mountain EFIS's. I hear product support after purchase is not so good but have no experience with the product. I can say that I am very happy with my D10 and the company stands behind their product if you have a problem or question. The real kick is when you call for tech support...you talk to a real human that actually helps to answer your questions. Doc -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Fred Schlafly Sent: Sunday, July 06, 2008 5:21 PM Subject: Yak-List: YAK-52 Attitude Indicator (AI) Has anyone had these AI rebuilt or found a suitable replacement for them, such as the Falcon electric AI for about $1200, etc? Fred Schlafly 1995 YAK-52 ________________________________ Message 5 _____________________________________ Time: 08:02:58 PM PST US From: "Roger Kemp MD" Subject: RE: Yak-List: Pop-off valve Better yet buy a new pop off valve from Gill or Steve Culp. At the least get a new piston, seal and spring from Jill. George Coy also has them. I don't think I would put the washers in ever. You are lucky the tank did not let go. Doc From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Robert Langford Sent: Friday, July 04, 2008 4:57 PM Subject: Re: Yak-List: Pop-off valve John: I would be concerned about the pressure building to 8. assuming the gauge is correct, you are building pressure to some 1,175 PSI. Too much for the system. You are correct that Approx. 5.5 is the ideal pressure.There should be no washers in the release valve, apparently someone has added those. I would not be concerned if I could maintain 4.5 after leakdown as this is enough air for a start. Try it with some of the washers removed. If you can maintain enough air, go with that. Robert ----- Original Message ----- From: John Graham Sent: Friday, July 04, 2008 3:20 PM Subject: Yak-List: Pop-off valve Happy Fourth of July! I am having an issue with my pop-off valve. If I leave the snot valve in during cruise, the main air pressure climbs to over 8 on the scale (80 ATMs). If I cruise with the snot open, it will not climb much above 5. When I land and it is at 8, the pop-off valve slowly hisses for an hour or more and slowly reduces to about 4.5. The snot valve does GUSH air when opened after cruise if it has been left in (i.e., it works). I disassembled the pop-off valve on the firewall and removed the spring - looked fine, but I am not sure if it is the right one and have no idea how to verify if it is the correct size spring. Also, there were 3 little round washers at the bottom of the spring - almost as if they were in there for spacing purposes. Is this normal? So...I am at a loss as to what to do. We have tried to adjust the nut on the pop-off valve but can't seem to dial it in to pop at the right pressure (I presume the optimal pressure to pop would be 5.5). Any ideas? John P. Graham CubFlyer1940@Yahoo.com Cell phone (630) 390-9451 3D=========================3 D=================== href='3D"http://www.matronics.com/Navigator?Yak-List"'>http://www.matronics. com/Navigator?Yak-List 3D=========================3 D=================== href='3D"http://forums.matronics.com"'>http://forums.matronics.com 3D=========================3 D=================== href='3D"http://www.matronics.com/contribution"'>http://www.matronics.com/co ntribution 3D=========================3 D=================== _____ 7/3/2008 7:19 PM ------------------------------------------------------------------------------------- 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.