---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 11/07/14: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 12:25 AM - Please Make a Contribution to Support Your Lists... (Matt Dralle) 1. 01:20 AM - When Pigs Fly South (Ernest Martinez) 2. 01:29 AM - YAK 50 Emergency Air Bottle (aerostar6) 3. 06:48 AM - Re: Oil Tank Check Valve (Bitterlich, Mark G CIV NAVAIR, WD) 4. 09:11 AM - Re: Oil Tank Check Valve (Gill Gutierrez) 5. 09:20 AM - Re: Oil Tank Check Valve (A. Dennis Savarese) 6. 11:07 AM - Re: Oil Tank Check Valve (Robin Hou) 7. 07:44 PM - Re: YAK 50 Emergency Air Bottle (Roger Kemp) 8. 09:30 PM - Re: Oil Tank Check Valve (Walter Lannon) ________________________________ Message 0 _____________________________________ Time: 12:25:40 AM PST US From: Matt Dralle Subject: Yak-List: Please Make a Contribution to Support Your Lists... Dear Listers, Just a reminder that November is the Annual List Fund Raiser. Please make a Contribution today to support the continued operation and upgrade of these great List services!! Pick up a really nice free gift with your qualifying Contribution too! The Contribution Site is fast and easy: http://www.matronics.com/contribution or by dropping a personal check in the mail to: Matt Dralle / Matronics 581 Jeannie Way Livermore CA 94551-0347 Thank you! Matt Dralle Matronics Email List Administrator ________________________________ Message 1 _____________________________________ Time: 01:20:58 AM PST US Subject: Yak-List: When Pigs Fly South From: Ernest Martinez Who's going to Lakeland this weekend? Ernie ________________________________ Message 2 _____________________________________ Time: 01:29:18 AM PST US Subject: Yak-List: YAK 50 Emergency Air Bottle From: "aerostar6" Did anyone in the US ever come up with a new build carbon fibre/kevlar replacement for theY50 emergency bottle? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433105#433105 ________________________________ Message 3 _____________________________________ Time: 06:48:34 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: RE: Yak-List: Oil Tank Check Valve Robin, I think before anyone could even make an educated guess, they would have to see the design and understand the theory of operation of such a device before they could even begin to consider whether it could be installed on any kind of aircraft. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Robin Hou Sent: Thursday, November 06, 2014 5:48 PM Subject: Yak-List: Oil Tank Check Valve http://www.rothsport.com/Products/Engine/Oil-Inlet-Check-Valves/Oil-Inlet-Check-Valves.htm I am wondering if this check valve will work between our tank and engine to reduce the possibility of hydraulic lock? It is designed for Porsche air cool 911 engine which has a dry sump oil system. Here is a description of how this valve works from www.pelicanparts.com: "One of the common problems with classic 911s can be a plume of oil smoke from your exhaust on start up. This is especially true for cars that do not get driven regularly or have sat for a while. While this is not harmful to the engine if after starting you get the engine up to operating temperature it can be quite embarrassing. There is nothing worse than having all eyes on you as you step into your 911 only to have a gigantic smoke screen come from the exhaust on start up. The majority of this smoke on startup comes from oil from the oil tank migrating back into the motor. Rothsport has come up with an ingenuous solution to this problem by designing an oil inlet check valve that restricts the flow of oil back into the motor and opens instantly on start up. Installation is quick and easy and a perfect solution for cars that sit for long periods of time. Note; the valve is clearly marked with an engine side and a tank side. Failure to install the check valve in the right orientation will lead to oil starvation and catastrophic damage to your engine. Please make sure to read all the instructions and double check the orientation of the valve when installing." What do you think? ________________________________ Message 4 _____________________________________ Time: 09:11:54 AM PST US From: "Gill Gutierrez" Subject: RE: Yak-List: Oil Tank Check Valve Robin, There is already a spring check valve in the system. Gill From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Robin Hou Sent: Thursday, November 06, 2014 3:48 PM Subject: Yak-List: Oil Tank Check Valve http://www.rothsport.com/Products/Engine/Oil-Inlet-Check-Valves/Oil-Inlet -Check-Valves.htm I am wondering if this check valve will work between our tank and engine to reduce the possibility of hydraulic lock? It is designed for Porsche air cool 911 engine which has a dry sump oil system. Here is a description of how this valve works from www.pelicanparts.com: "One of the common problems with classic 911=99s can be a plume of oil smoke from your exhaust on start up. This is especially true for cars that do not get driven regularly or have sat for a while. While this is not harmful to the engine if after starting you get the engine up to operating temperature it can be quite embarrassing. There is nothing worse than having all eyes on you as you step into your 911 only to have a gigantic smoke screen come from the exhaust on start up. The majority of this smoke on startup comes from oil from the oil tank migrating back into the motor. Rothsport has come up with an ingenuous solution to this problem by designing an oil inlet check valve that restricts the flow of oil back into the motor and opens instantly on start up. Installation is quick and easy and a perfect solution for cars that sit for long periods of time. Note; the valve is clearly marked with an engine side and a tank side. Failure to install the check valve in the right orientation will lead to oil starvation and catastrophic damage to your engine. Please make sure to read all the instructions and double check the orientation of the valve when installing." What do you think? ________________________________ Message 5 _____________________________________ Time: 09:20:49 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Oil Tank Check Valve Gill is 100% correct. Any external shut off valve or additional check valv e only masks the root of the problem, which as Jill has so clearly stated i n the Red Star magazine, internally in the oil pump itself. Have Jill over haul your oil pump and refurbish the internal shut off valve in the oil pum p. =0A=0ADennis=0A=0A=0A=0A________________________________=0A From: Gill Gutierrez =0ATo: yak-list@matronics.com =0ASent: Friday , November 7, 2014 11:09 AM=0ASubject: RE: Yak-List: Oil Tank Check Valve =0A =0A=0A=0ARobin,=0A =0AThere is already a spring check valve in the syst em.=0A =0AGill=0A =0AFrom:owner-yak-list-server@matronics.com [mailto:owner -yak-list-server@matronics.com] On Behalf Of Robin Hou=0ASent: Thursday, No vember 06, 2014 3:48 PM=0ATo: Yak-List Digest Server=0ASubject: Yak-List: O il Tank Check Valve=0A =0Ahttp://www.rothsport.com/Products/Engine/Oil-Inle t-Check-Valves/Oil-Inlet-Check-Valves.htm=0A =0AI am wondering if this chec k valve will work between our tank and engine to reduce the possibility of hydraulic lock? It is designed for Porsche air cool 911 engine which has a dry sump oil system. Here is a description of how this valve works from www .pelicanparts.com:=0A =0A"One of the common problems with classic 911 =99s can be a plume of oil smoke from your exhaust on start up. This is esp ecially true for cars that do not get driven regularly or have sat for a wh ile. While this is not harmful to the engine if after starting you get the engine up to operating temperature it can be quite embarrassing. There is n othing worse than having all eyes on you as you step into your 911 only to have a gigantic smoke screen come from the exhaust on start up.=0A=0AThe ma jority of this smoke on startup comes from oil from the oil tank migrating back into the motor. Rothsport has come up with an ingenuous solution to th is problem by designing an oil inlet check valve that restricts the flow of oil back into the motor and opens instantly on start up. Installation is q uick and easy and a perfect solution for cars that sit for long periods of time. Note; the valve is clearly marked with an engine side and a tank side . Failure to install the check valve in the right orientation will lead to oil starvation and catastrophic damage to your engine. Please make sure to read all the instructions and double check the orientation of the valve whe n installing."=0A =0AWhat do you think?=0A =0A =0A =0Awww.aeroelectric.com =0Awww.buildersbooks.com=0Awww.homebuilthelp.com www.mypilotstore.com=0Awww .mrrace.com=0Ahttp://www.matronics.com/contribution=0Ahttp://www.matronics. ======= ________________________________ Message 6 _____________________________________ Time: 11:07:11 AM PST US From: Robin Hou Subject: Re: Yak-List: Oil Tank Check Valve You are all correct.=0A=0APlus, this valve is actually very expensive. Ther e are proven devices out there for about the same cost.=0A=0AThanks for you r comments.=0A=0A=0AOn Friday, November 7, 2014 9:16 AM, A. Dennis Savarese wrote:=0A =0A=0A=0AGill is 100% correct. An y external shut off valve or additional check valve only masks the root of the problem, which as Jill has so clearly stated in the Red Star magazine, internally in the oil pump itself. Have Jill overhaul your oil pump and re furbish the internal shut off valve in the oil pump. =0A=0ADennis=0A=0A=0A =0A________________________________=0A From: Gill Gutierrez =0ATo: yak-list@matronics.com =0ASent: Friday, November 7, 2014 11:09 AM=0ASubject: RE: Yak-List: Oil Tank Check Valve=0A =0A=0A=0ARobin,=0A =0AT here is already a spring check valve in the system.=0A =0AGill=0A =0AFrom:o wner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics. com] On Behalf Of Robin Hou=0ASent: Thursday, November 06, 2014 3:48 PM=0AT o: Yak-List Digest Server=0ASubject: Yak-List: Oil Tank Check Valve=0A =0Ah ttp://www.rothsport.com/Products/Engine/Oil-Inlet-Check-Valves/Oil-Inlet-Ch eck-Valves.htm=0A =0AI am wondering if this check valve will work between o ur tank and engine to reduce the possibility of hydraulic lock? It is desig ned for Porsche air cool 911 engine which has a dry sump oil system. Here i s a description of how this valve works from www.pelicanparts.com:=0A =0A"O ne of the common problems with classic 911=99s can be a plume of oil smoke from your exhaust on start up. This is especially true for cars that do not get driven regularly or have sat for a while. While this is not harm ful to the engine if after starting you get the engine up to operating temp erature it can be quite embarrassing. There is nothing worse than having al l eyes on you as you step into your 911 only to have a gigantic smoke scree n come from the exhaust on start up.=0A=0AThe majority of this smoke on sta rtup comes from oil from the oil tank migrating back into the motor. Rothsp ort=0A has come up with an ingenuous solution to this problem by designing an oil inlet check valve that restricts the flow of oil back into the motor and opens instantly on start up. Installation is quick and easy and a perf ect solution for cars that sit for long periods of time. Note; the valve is clearly marked with an engine side and a tank side. Failure to install the check valve in the right orientation will lead to oil starvation and catas trophic damage to your engine. Please make sure to read all the instruction s and double check the orientation of the valve when installing."=0A =0AWha t do you think?=0A =0A =0A =0Awww.aeroelectric.com=0Awww.buildersbooks.com =0Awww.homebuilthelp.com www.mypilotstore.com=0Awww.mrrace.com=0Ahttp://www .matronics.com/contribution=0Ahttp://www.matronics.com/Navigator?Yak-List Builder's Bookstore wofollow" target="_blank" href="http://www.matroni cs.com/contribution">hw" target="_blank" href="http://www.matronics.com ===================== ________________________________ Message 7 _____________________________________ Time: 07:44:30 PM PST US Subject: Re: Yak-List: YAK 50 Emergency Air Bottle From: Roger Kemp Not that I am aware of. Some talk but no action as far as I know of. Doc Sent from my iPad > On Nov 7, 2014, at 3:28 AM, aerostar6 wrote: > > > Did anyone in the US ever come up with a new build carbon fibre/kevlar replacement for theY50 emergency bottle? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=433105#433105 > > > > > > > > > > ________________________________ Message 8 _____________________________________ Time: 09:30:29 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: Oil Tank Check Valve Well, I wonder about that. Having lived with P&W radials for about 50 years and comparing the incidence of hydraulic lock between P&W and the Ivchenko series engines I would guess the ratio is somewhere around 1/100. A major design difference lies in the location of the static oil flow check valve. In P&W engines this valve is NOT integral to the oil pump. It is a relatively large, lightly spring loaded, poppet style valve positioned immediately downstream of the oil pressure outlet. It is readily removable for inspection. With this installation it does not matter how the leakage oil gets through the static pump (and it does!) it is stopped at that point. Of course if that valve develops a leak hydraulic lock can be the result and it has happened but is a pretty rare occurrence. Not the case with the M14 etc. it is almost to be expected at some time in the life of the engine. For what it=99s worth I would suggest that the valve in the Ivchenko series is incapable of preventing leakage flow through the pump in the static condition and I think history has proved me correct. Cheers; Walt From: A. Dennis Savarese Sent: Friday, November 07, 2014 9:16 AM Subject: Re: Yak-List: Oil Tank Check Valve Gill is 100% correct. Any external shut off valve or additional check valve only masks the root of the problem, which as Jill has so clearly stated in the Red Star magazine, internally in the oil pump itself. Have Jill overhaul your oil pump and refurbish the internal shut off valve in the oil pump. Dennis ------------------------------------------------------------------------- ------- From: Gill Gutierrez Sent: Friday, November 7, 2014 11:09 AM Subject: RE: Yak-List: Oil Tank Check Valve Robin, There is already a spring check valve in the system. Gill From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Robin Hou Sent: Thursday, November 06, 2014 3:48 PM Subject: Yak-List: Oil Tank Check Valve http://www.rothsport.com/Products/Engine/Oil-Inlet-Check-Valves/Oil-Inlet -Check-Valves.htm I am wondering if this check valve will work between our tank and engine to reduce the possibility of hydraulic lock? It is designed for Porsche air cool 911 engine which has a dry sump oil system. Here is a description of how this valve works from www.pelicanparts.com: "One of the common problems with classic 911=99s can be a plume of oil smoke from your exhaust on start up. This is especially true for cars that do not get driven regularly or have sat for a while. While this is not harmful to the engine if after starting you get the engine up to operating temperature it can be quite embarrassing. There is nothing worse than having all eyes on you as you step into your 911 only to have a gigantic smoke screen come from the exhaust on start up. The majority of this smoke on startup comes from oil from the oil tank migrating back into the motor. Rothsport has come up with an ingenuous solution to this problem by designing an oil inlet check valve that restricts the flow of oil back into the motor and opens instantly on start up. Installation is quick and easy and a perfect solution for cars that sit for long periods of time. Note; the valve is clearly marked with an engine side and a tank side. Failure to install the check valve in the right orientation will lead to oil starvation and catastrophic damage to your engine. Please make sure to read all the instructions and double check the orientation of the valve when installing." What do you think? www.aeroelectric.comwww.buildersbooks.comwww.homebuilthelp.com www.mypilotstore.comwww.mrrace.comhttp://www.matronics.com/contributionht tp://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.com www.aeroelectric.com href="http://www.matronics.com/contribution">hw" target="_blank" href="http://www.matronics.com/Navigator?Yak-List">h ------------------------------------------------------------------------------------- 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.