---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Wed 06/10/15: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:08 AM - The Ultimate Hanger Trophy ? (Kevin Pilling) 2. 06:28 AM - Re: PRESSURIZING THE FUEL SYSTEM QUESTION (Bill1200) 3. 06:40 AM - scavenging the engine before shutdown (Richard Goode) 4. 06:45 AM - Re: scavenging the engine before shutdown (Ernest Martinez) 5. 09:18 AM - Re: scavenging the engine before shutdown (Walter Lannon) 6. 11:29 AM - Re: Throttle Open on Shutdown ? (Bill vH) 7. 11:33 AM - Re: Re: Throttle Open on Shutdown ? (Phil Salter) ________________________________ Message 1 _____________________________________ Time: 02:08:14 AM PST US From: "Kevin Pilling" Subject: Yak-List: The Ultimate Hanger Trophy ? http://www.ebay.co.uk/itm/Supermarine-Spitfire-mk9-fighter-instrument-panel- vintage-aircraft-WW11-/231586291119?pt=LH_DefaultDomain_3 &hash=item35eb9e5daf I'd sure like it live in front of me for an hour or two ! kp --- This email is free from viruses and malware because avast! Antivirus protection is active. https://www.avast.com/antivirus ________________________________ Message 2 _____________________________________ Time: 06:28:42 AM PST US Subject: Yak-List: Re: PRESSURIZING THE FUEL SYSTEM QUESTION From: "Bill1200" oK, thanks, I'll check it out Read this topic online here: http://forums.matronics.com/viewtopic.php?p=443337#443337 ________________________________ Message 3 _____________________________________ Time: 06:40:37 AM PST US From: "Richard Goode" Subject: Yak-List: scavenging the engine before shutdown One very good reason for running the engine at a minimum of 60% for 20 seconds before shutting down is that this will ensure that virtually all the excess oil inside the engine will be scavenged back to the oil tank, and this is the time that the oil level should be checked. So, when you return to next fly the aircraft, having made a note of the oil level, you can see how much the level has gone down, and by definition, that oil has migrated down into the engine, or possibly the cylinders! Richard Goode Aerobatics Rhodds Farm Lyonshall Hereford HR5 3LW Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com ________________________________ Message 4 _____________________________________ Time: 06:45:38 AM PST US Subject: Re: Yak-List: scavenging the engine before shutdown From: Ernest Martinez Hmmm, That's a very good point. I never considered checking oil immediately after shutdown, and then subsequently prior to start and compare the difference..... I will do that next time. Ernie On Wednesday, June 10, 2015, Richard Goode wrote: > One very good reason for running the engine at a minimum of 60% for 20 > seconds before shutting down is that this will ensure that virtually all > the excess oil inside the engine will be scavenged back to the oil tank, > and this is the time that the oil level should be checked. So, when you > return to next fly the aircraft, having made a note of the oil level, you > can see how much the level has gone down, and by definition, that oil has > migrated down into the engine, or possibly the cylinders! > > > Richard Goode Aerobatics > > Rhodds Farm > > Lyonshall > > Hereford > > HR5 3LW > > > Tel: +44 (0) 1544 340120 > > Fax: +44 (0) 1544 340129 > > www.russianaeros.com > > > * > > > * > > ________________________________ Message 5 _____________________________________ Time: 09:18:35 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: scavenging the engine before shutdown Richard Pretty much the same scavenge procedure I have used for at least 50 years starting with the Ranger engine, then the R985, R1340 and now the Ivchenko engines. Specific RPM (I use 1400) for specific time (1 minute). Exactly the same each time allows an accurate assessment of oil consumption. One minute period also helps reduce shut-down cyl. temp. close to the max. recommended of 140 deg. C. Walt From: Richard Goode Sent: Wednesday, June 10, 2015 6:39 AM Subject: Yak-List: scavenging the engine before shutdown One very good reason for running the engine at a minimum of 60% for 20 seconds before shutting down is that this will ensure that virtually all the excess oil inside the engine will be scavenged back to the oil tank, and this is the time that the oil level should be checked. So, when you return to next fly the aircraft, having made a note of the oil level, you can see how much the level has gone down, and by definition, that oil has migrated down into the engine, or possibly the cylinders! Richard Goode Aerobatics Rhodds Farm Lyonshall Hereford HR5 3LW Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com ________________________________ Message 6 _____________________________________ Time: 11:29:55 AM PST US Subject: Yak-List: Re: Throttle Open on Shutdown ? From: "Bill vH" PS wrote: > Mark, > > By moving your prop backwards slightly, it reverses or releives the pressure on the check valve at the oil pump. I had good results. > > > Phil > > > -- Actually Phil, I would think that it may slightly pressurize the check valve, increasing its limited effectiveness. Just remember the orientation and flow direction of the valve. I think I'll give it a try. Bill vH Read this topic online here: http://forums.matronics.com/viewtopic.php?p=443356#443356 ________________________________ Message 7 _____________________________________ Time: 11:33:57 AM PST US From: Phil Salter Subject: Re: Yak-List: Re: Throttle Open on Shutdown ? You are correct, long day at work and brain fart... Thanks Phil Securities offered through Summit Brokerage Services Inc., Member FINRA, SIP C. Advisory services offered through Summit Financial Group Inc., a Register ed Investment Advisor. Sent from my IPad. > On Jun 10, 2015, at 1:29 PM, Bill vH wrote: > > > > PS wrote: >> Mark, >> >> By moving your prop backwards slightly, it reverses or releives the pres sure on the check valve at the oil pump. I had good results. >> >> >> Phil >> >> >> -- > > > Actually Phil, I would think that it may slightly pressurize the check val ve, increasing its limited effectiveness. Just remember the orientation and f low direction of the valve. > I think I'll give it a try. > > > Bill vH > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=443356#443356 > > > > > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > > > ------------------------------------------------------------------------------------- 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.