---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 02/21/03: 25 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:09 AM - mags (cjpilot710@aol.com) 2. 06:41 AM - Re: mags (A. Dennis Savarese) 3. 06:44 AM - Finding 5 mm wire (Re: mags) (A. Dennis Savarese) 4. 07:48 AM - Snot Valve (Bob Monzo) 5. 08:09 AM - Re: Snot Valve (A. Dennis Savarese) 6. 08:47 AM - Re: mags (cjpilot710@aol.com) 7. 08:47 AM - Re: Snot Valve (Kevin Pilling) 8. 08:47 AM - Re: Finding 5 mm wire (Re: mags) (cjpilot710@aol.com) 9. 09:18 AM - Re: Snot Valve (cjpilot710@aol.com) 10. 10:27 AM - yak wrap (Jon Boede) 11. 10:53 AM - Re: Snot Valve (Doug) 12. 11:43 AM - Re: yak wrap (cjpilot710@aol.com) 13. 11:47 AM - Re: Snot Valve (ron wasson) 14. 11:53 AM - Re: Finding 5 mm wire (Re: mags) (A. Dennis Savarese) 15. 12:01 PM - Re: Snot Valve (Jon Boede) 16. 12:04 PM - Re: Snot Valve (cjpilot710@aol.com) 17. 12:09 PM - Re: Snot Valve (ron wasson) 18. 12:16 PM - Re: Snot Valve (Doug) 19. 12:19 PM - Re: Snot Valve (A. Dennis Savarese) 20. 02:13 PM - Re: Snot Valve (ron wasson) 21. 05:24 PM - Jurgis Kairys (Barry Hancock) 22. 08:01 PM - Re: Snot Valve (Brian Lloyd) 23. 08:21 PM - Re: Jurgis Kairys (cjpilot710@aol.com) 24. 08:24 PM - Fw: S&Fup date. (cjpilot710@aol.com) 25. 09:56 PM - It's official (Barry Hancock) ________________________________ Message 1 _____________________________________ Time: 06:09:07 AM PST US From: cjpilot710@aol.com Subject: Yak-List: mags --> Yak-List message posted by: cjpilot710@aol.com Gang, As some of you know I've been having mag problems. It started out as loosing a lot of RPMs on both mags, that changing plugs didn't fix. I did a high tension test of the wires that showed them OK. I took off the Russian mags and sent them to Carl Hays in CA for overhaul. He replaced some bearing, rewound the coils, replaced condensers. In the mean time, I put two Chinese mags on the engine which ran fine, until I totally lost one on a flight home. Knowing that I had two fresh overhauls on the way, I figured it would be just a matter of putting them on. We did that - they tested OK and I made a :30 practice acro flight. When I tested the mags just before shut down, I found a 200rpm drop on the right, which I've been chasing ever since. So far I've changed the distributor cap, all the plugs, and I've changed #6& #7 rear wires. #7 wire was in very bad shape. The breaded shielding was almost completely separated from the end near the elbow for the plug, plus the wire badly kink and the insulation broken down. Though I thought this was the answer to all my problem, not so. I still have an 150 to 170 rpm drop on the right mag plus the engine barks or misses particularly at takeoff power. I have new wires on the way. I plan on changing out all the rear wires first, than the front. BTW a new source for the 5 mm wire is: Savage Magneto Service P.O. 2401 Airport Station, Ca. 94614 510.782.7081 (Hays & Coy were both out of wire) Do not buy the nice 7 mm wire like I did (50 feet) it will not fit any part of the system. Take it from me. BTW any one want to buy 48 feet of 7 mm ignition wire? Half price. :-} Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 2 _____________________________________ Time: 06:41:17 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: mags --> Yak-List message posted by: "A. Dennis Savarese" Jim, What's the status of the intake gland nuts and the intake tube collars? I know you said the drop was on #2 Mag, but do check them as well. I have found an anomaly with respect to the braided harnesses. There are metal clamps typically holding a pair of plug wires together and then both are clamped to an intake tube. I chased a problem with a misfire on #5 cylinder and ultimately found the metal clamp holding the two plug wire shields together was pinching the braid into the plug wire and causing the arcing between the shield and the wire. I removed the metal clamp and replaced them with double loop tie wraps. The problem went away after that. I'm sure you do this, but I'll mention it anyway for the other folks on our list. It is almost mandatory that the plug wiring harnesses be lubricated with a silicone spray or even WD40 periodically. This helps prevent the chaffing of the wire against the braided shield and helps eliminate the arcing. Also helps eliminate the moisture from the harness that invariably shows up. You have to remove the 22 mm nut on the elbow end of the plug wire where it attaches to the plug, push back the rubber sleeve, insert the spray tube and spray away. Then on the opposite end where the plug wires go into the harness tube, there are more 22 mm nuts. They too must be loosened and the rubber tube pushed back and then spray into the wiring harness again. For the wires above the horizontal position, you only have to do the end by the plug since the lubricant will run down hill. Below the horizontal position, sorry....... It's a pain in the butt job but it does solve a whole lot of misfiring problems. You can also spray the braided shield since the lubricant will wick through the pores in the braid to the wire. Good luck, Dennis Savarese ----- Original Message ----- From: Subject: Yak-List: mags > --> Yak-List message posted by: cjpilot710@aol.com > > Gang, > As some of you know I've been having mag problems. It started out as loosing > a lot of RPMs on both mags, that changing plugs didn't fix. I did a high > tension test of the wires that showed them OK. I took off the Russian mags > and sent them to Carl Hays in CA for overhaul. He replaced some bearing, > rewound the coils, replaced condensers. In the mean time, I put two Chinese > mags on the engine which ran fine, until I totally lost one on a flight home. > Knowing that I had two fresh overhauls on the way, I figured it would be > just a matter of putting them on. We did that - they tested OK and I made a > :30 practice acro flight. When I tested the mags just before shut down, I > found a 200rpm drop on the right, which I've been chasing ever since. > > So far I've changed the distributor cap, all the plugs, and I've changed #6& > #7 rear wires. #7 wire was in very bad shape. The breaded shielding was > almost completely separated from the end near the elbow for the plug, plus > the wire badly kink and the insulation broken down. Though I thought this > was the answer to all my problem, not so. I still have an 150 to 170 rpm > drop on the right mag plus the engine barks or misses particularly at takeoff > power. > > I have new wires on the way. I plan on changing out all the rear wires > first, than the front. > BTW a new source for the 5 mm wire is: > Savage Magneto Service > P.O. 2401 > Airport Station, Ca. 94614 > 510.782.7081 > (Hays & Coy were both out of wire) > > Do not buy the nice 7 mm wire like I did (50 feet) it will not fit any part > of the system. Take it from me. > BTW any one want to buy 48 feet of 7 mm ignition wire? Half price. :-} > > Jim > > "They that can give up essential liberty to obtain a little safety, > deserve neither liberty nor safety" > Benjamin Franklin 1759 > "With my shield, or on it" > Trojan Warriors BC > > ________________________________ Message 3 _____________________________________ Time: 06:44:14 AM PST US From: "A. Dennis Savarese" Subject: Finding 5 mm wire (Re: Yak-List: mags) --> Yak-List message posted by: "A. Dennis Savarese" On 5mm wire, I have found it at a local lawn mower repair service. Seems the plug wires on many lawn mowers are 5mm with stranded core as well. Dennis Savarese ----- Original Message ----- From: Subject: Yak-List: mags > --> Yak-List message posted by: cjpilot710@aol.com > > Gang, > As some of you know I've been having mag problems. It started out as loosing > a lot of RPMs on both mags, that changing plugs didn't fix. I did a high > tension test of the wires that showed them OK. I took off the Russian mags > and sent them to Carl Hays in CA for overhaul. He replaced some bearing, > rewound the coils, replaced condensers. In the mean time, I put two Chinese > mags on the engine which ran fine, until I totally lost one on a flight home. > Knowing that I had two fresh overhauls on the way, I figured it would be > just a matter of putting them on. We did that - they tested OK and I made a > :30 practice acro flight. When I tested the mags just before shut down, I > found a 200rpm drop on the right, which I've been chasing ever since. > > So far I've changed the distributor cap, all the plugs, and I've changed #6& > #7 rear wires. #7 wire was in very bad shape. The breaded shielding was > almost completely separated from the end near the elbow for the plug, plus > the wire badly kink and the insulation broken down. Though I thought this > was the answer to all my problem, not so. I still have an 150 to 170 rpm > drop on the right mag plus the engine barks or misses particularly at takeoff > power. > > I have new wires on the way. I plan on changing out all the rear wires > first, than the front. > BTW a new source for the 5 mm wire is: > Savage Magneto Service > P.O. 2401 > Airport Station, Ca. 94614 > 510.782.7081 > (Hays & Coy were both out of wire) > > Do not buy the nice 7 mm wire like I did (50 feet) it will not fit any part > of the system. Take it from me. > BTW any one want to buy 48 feet of 7 mm ignition wire? Half price. :-} > > Jim > > "They that can give up essential liberty to obtain a little safety, > deserve neither liberty nor safety" > Benjamin Franklin 1759 > "With my shield, or on it" > Trojan Warriors BC > > ________________________________ Message 4 _____________________________________ Time: 07:48:18 AM PST US From: "Bob Monzo" Subject: Yak-List: Snot Valve --> Yak-List message posted by: "Bob Monzo" When I got my Yak-52 in 1996 I had the hardware installed so that the snot valve could be opened (and closed) from the cockpit so that the compressor would not work against itself in-flight after it had re-filled the air system. This supposedly would cause the compressor to last longer. Well my compressor gave it up after 600 hours. (Note-the airplane & compressor were new in 1996 and I flew all 600 hours using the cockpit control to open the snot valve in-flight as recommended.) I don't know if maybe I had a compressor doomed to failure at 600 hours no matter what and opening the snot valve in-flight is truely a good thing or it really has no effect on the operation and longevity of the compressor. The cockpit control was disconnected 25 hours ago after a new compressor was installed. Now that I have confirmed the air system in working fine again, I have to decide whether I should reconnect the cockpit control. Any thoughts would be appreciated. Bob M. ________________________________ Message 5 _____________________________________ Time: 08:09:08 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: "A. Dennis Savarese" Bob, The "remote" cable to open/close the snot bottle should not have any negative impact on your air compressor. I would certainly reconnect it and continue to use it in the manner you have been. Do you know what part of the compressor gave up the ghost? Did it seize and sheer the sheer pins or did the output check valve fail or what? Dennis Savarese ----- Original Message ----- From: "Bob Monzo" Subject: Yak-List: Snot Valve > --> Yak-List message posted by: "Bob Monzo" > > When I got my Yak-52 in 1996 I had the hardware installed so that the snot valve could be opened (and closed) from the cockpit so that the compressor would not work against itself in-flight after it had re-filled the air system. This supposedly would cause the compressor to last longer. Well my compressor gave it up after 600 hours. (Note-the airplane & compressor were new in 1996 and I flew all 600 hours using the cockpit control to open the snot valve in-flight as recommended.) I don't know if maybe I had a compressor doomed to failure at 600 hours no matter what and opening the snot valve in-flight is truely a good thing or it really has no effect on the operation and longevity of the compressor. The cockpit control was disconnected 25 hours ago after a new compressor was installed. Now that I have confirmed the air system in working fine again, I have to decide whether I should reconnect the cockpit control. Any thoughts would be appreciated. > > Bob M. > > ________________________________ Message 6 _____________________________________ Time: 08:47:11 AM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: mags --> Yak-List message posted by: cjpilot710@aol.com In a message dated 2/21/2003 9:41:51 AM Eastern Standard Time, adsavar@gte.net writes: > Jim, > What's the status of the intake gland nuts and the intake tube collars? I > know you said the drop was on #2 Mag, but do check them as well. Good point and I did check those as well. > > I have found an anomaly with respect to the braided harnesses. There are > metal clamps typically holding a pair of plug wires together and then both > are clamped to an intake tube. I chased a problem with a misfire on #5 > cylinder and ultimately found the metal clamp holding the two plug wire > shields together was pinching the braid into the plug wire and causing the > arcing between the shield and the wire. I removed the metal clamp and > replaced them with double loop tie wraps. The problem went away after > that. I didn't seem to have that particular problem. The shielding that came apart, literally, was at point about 1" from the plug elbow, still under the rubber tubing. The only thing that looks like might have caused it, is the kink in the wire. It looks as if, when they built the engine, the assembler, had to much wire and pushed it back up into the shielding, causing it to kink. > > I'm sure you do this, but I'll mention it anyway for the other folks on our > list. It is almost mandatory that the plug wiring harnesses be lubricated > with a silicone spray or even WD40 periodically. This helps prevent the > chaffing of the wire against the braided shield and helps eliminate the > arcing. Also helps eliminate the moisture from the harness that invariably > shows up. You have to remove the 22 mm nut on the elbow end of the plug > wire where it attaches to the plug, push back the rubber sleeve, insert the > spray tube and spray away. Then on the opposite end where the plug wires > go > into the harness tube, there are more 22 mm nuts. They too must be > loosened > and the rubber tube pushed back and then spray into the wiring harness > again. For the wires above the horizontal position, you only have to do > the > end by the plug since the lubricant will run down hill. Below the > horizontal position, sorry....... It's a pain in the butt job but it does > solve a whole lot of misfiring problems. You can also spray the braided > shield since the lubricant will wick through the pores in the braid to the > wire. > All good points. Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 7 _____________________________________ Time: 08:47:14 AM PST US From: "Kevin Pilling" Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: "Kevin Pilling" 600 hrs between compressor overhauls seems pretty good to me ! My last one went away after 300'ish kp ----- Original Message ----- From: "Bob Monzo" Subject: Yak-List: Snot Valve > --> Yak-List message posted by: "Bob Monzo" > > When I got my Yak-52 in 1996 I had the hardware installed so that the snot valve could be opened (and closed) from the cockpit so that the compressor would not work against itself in-flight after it had re-filled the air system. This supposedly would cause the compressor to last longer. Well my compressor gave it up after 600 hours. (Note-the airplane & compressor were new in 1996 and I flew all 600 hours using the cockpit control to open the snot valve in-flight as recommended.) I don't know if maybe I had a compressor doomed to failure at 600 hours no matter what and opening the snot valve in-flight is truely a good thing or it really has no effect on the operation and longevity of the compressor. The cockpit control was disconnected 25 hours ago after a new compressor was installed. Now that I have confirmed the air system in working fine again, I have to decide whether I should reconnect the cockpit control. Any thoughts would be appreciated. > > Bob M. > > ________________________________ Message 8 _____________________________________ Time: 08:47:54 AM PST US From: cjpilot710@aol.com Subject: Re: Finding 5 mm wire (Re: Yak-List: mags) --> Yak-List message posted by: cjpilot710@aol.com In a message dated 2/21/2003 9:44:48 AM Eastern Standard Time, adsavar@gte.net writes: > > On 5mm wire, I have found it at a local lawn mower repair service. Seems > the plug wires on many lawn mowers are 5mm with stranded core as well. > Dennis Savarese > I'll look into that. You have to be careful that the wire has got stainless steel strands and not copper. Copper breaks down to easily. Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 9 _____________________________________ Time: 09:18:08 AM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: cjpilot710@aol.com In a message dated 2/21/2003 10:50:38 AM Eastern Standard Time, yakpilot@wideopenwest.com writes: > > When I got my Yak-52 in 1996 I had the hardware installed so that the snot > valve could be opened (and closed) from the cockpit so that the compressor > would not work against itself in-flight after it had re-filled the air > system. This supposedly would cause the compressor to last longer. Well > my compressor gave it up after 600 hours. (Note-the airplane & compressor > were new in 1996 and I flew all 600 hours using the cockpit control to open > the snot valve in-flight as recommended.) I don't know if maybe I had a > compressor doomed to failure at 600 hours no matter what and opening the > snot valve in-flight is truely a good thing or it really has no effect on > the operation and longevity of the compressor. The cockpit control was > disconnected 25 hours ago after a new compressor was installed. Now that I > have confirmed the air system in working fine again, I have to decide > whether I should reconnect the cockpit control. Any thoughts would be > appreciated. > > Bob M. > Bob, My personal view is that I don't think it makes much difference. I do not dispute that you gain some HP with the valve open and the compressor is robbing some HP. I just don't know how much and is it worth it. One model of the Yak-18T had that type valve come from the factory on it. Others did not. It might make sense on an aircraft used for cruising in that some fuel economy may be gained, but from the short duration flights of a Yak-52 it might not mean a lot. To me the compressor is sitting on the engine, and it is moving up and down, up and down, weather its compressing air or not. To me this is what wears a compressor out, not the act of compressing. It does rob HP from the engine, more so when its compressing air. HP relates to fuel used over a given time period. That is the real reason for the bypass valve, to save fuel Now referring to the KISS principles of flight. Operation of the valve is one more thing to divert one's attention from the perils and beauty of flight. One must ask one self "Do I REALLY need this?" Personally, just for me, no. But if I had this engine in a world cruiser, yes. Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 10 ____________________________________ Time: 10:27:54 AM PST US Subject: Yak-List: yak wrap From: "Jon Boede" --> Yak-List message posted by: "Jon Boede" I'm replacing the air box on my engine, which means re-installing the temp. probe, etc. all of which is wrapped in that whacky Chinese plastic wrap. Is there a source for replacement plastic wrap that has the same characteristics as the current wrap -- heat, oil, etc? Thanks, Jon ________________________________ Message 11 ____________________________________ Time: 10:53:20 AM PST US From: "Doug" Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: "Doug" Guys, Last year I hooked my compressor so it could be opened in flight, installed a fuel flow, and a digital tac. All in an effort to de-bunk or confirm this claim of fuel savings or more power. I found that in cruise when the snot valve was opened and the fuel flow and the tac were monitored, no change was noted in either instrument. So either the measurements are so small that my instruments could not detect them, or there was in fact no change. Either way I think its not worth doing. Any small gain (if there is any) is lost when you stop to consider that you have just created another thing to cause you grief when you least expect it. Also, about pump life. Getting an excess of 600 hours out of a pump is wishful thinking. These types of accessories seldom make engine TBO. But considering the difficulty in R&R'ing the compressor, it would be great if this one was a bit longer lasting. One last thought--Many machines are designed to operate under a load, so there is the outside chance that we might not be extending the life by taking the pressure off the pump,and in fact might be shorting it. food for thought. Always Yakin, Doug Sapp ----- Original Message ----- From: Subject: Re: Yak-List: Snot Valve > --> Yak-List message posted by: cjpilot710@aol.com > > In a message dated 2/21/2003 10:50:38 AM Eastern Standard Time, > yakpilot@wideopenwest.com writes: > > > > > > When I got my Yak-52 in 1996 I had the hardware installed so that the snot > > valve could be opened (and closed) from the cockpit so that the compressor > > would not work against itself in-flight after it had re-filled the air > > system. This supposedly would cause the compressor to last longer. Well > > my compressor gave it up after 600 hours. (Note-the airplane & compressor > > were new in 1996 and I flew all 600 hours using the cockpit control to open > > the snot valve in-flight as recommended.) I don't know if maybe I had a > > compressor doomed to failure at 600 hours no matter what and opening the > > snot valve in-flight is truely a good thing or it really has no effect on > > the operation and longevity of the compressor. The cockpit control was > > disconnected 25 hours ago after a new compressor was installed. Now that I > > have confirmed the air system in working fine again, I have to decide > > whether I should reconnect the cockpit control. Any thoughts would be > > appreciated. > > > > Bob M. > > > > Bob, > My personal view is that I don't think it makes much difference. I do not > dispute that you gain some HP with the valve open and the compressor is > robbing some HP. I just don't know how much and is it worth it. One model > of the Yak-18T had that type valve come from the factory on it. Others did > not. It might make sense on an aircraft used for cruising in that some fuel > economy may be gained, but from the short duration flights of a Yak-52 it > might not mean a lot. > > To me the compressor is sitting on the engine, and it is moving up and down, > up and down, weather its compressing air or not. To me this is what wears a > compressor out, not the act of compressing. It does rob HP from the engine, > more so when its compressing air. HP relates to fuel used over a given time > period. That is the real reason for the bypass valve, to save fuel > > Now referring to the KISS principles of flight. Operation of the valve is > one more thing to divert one's attention from the perils and beauty of > flight. One must ask one self "Do I REALLY need this?" Personally, just for > me, no. But if I had this engine in a world cruiser, yes. > > Jim > > "They that can give up essential liberty to obtain a little safety, > deserve neither liberty nor safety" > Benjamin Franklin 1759 > "With my shield, or on it" > Trojan Warriors BC > > ________________________________ Message 12 ____________________________________ Time: 11:43:14 AM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: yak wrap --> Yak-List message posted by: cjpilot710@aol.com In a message dated 2/21/2003 1:28:56 PM Eastern Standard Time, jon@zoso.email.net writes: > > Is there a source for replacement plastic wrap that has the same > characteristics as the current wrap -- heat, oil, etc? > > Well I know 'Handy Wrap' don't work! :-) Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 13 ____________________________________ Time: 11:47:02 AM PST US Subject: Re: Yak-List: Snot Valve From: ron wasson --> Yak-List message posted by: ron wasson If the pressure relief valve sticks high ,as they all seem to do if they get dirty ,then the snot valve open sure controls this till you get on the ground and clean it. Beats moving the flaps up and down trying to keep the pressure down till you can land. A new pressure valve from Doug solved the problem but it sure is nice to know I have a backup so I don't blow a tank. Ron ________________________________ Message 14 ____________________________________ Time: 11:53:07 AM PST US From: "A. Dennis Savarese" Subject: Re: Finding 5 mm wire (Re: Yak-List: mags) --> Yak-List message posted by: "A. Dennis Savarese" Understood and I completely agree with you. Dennis ----- Original Message ----- From: Subject: Re: Finding 5 mm wire (Re: Yak-List: mags) > --> Yak-List message posted by: cjpilot710@aol.com > > In a message dated 2/21/2003 9:44:48 AM Eastern Standard Time, > adsavar@gte.net writes: > > > > > > On 5mm wire, I have found it at a local lawn mower repair service. Seems > > the plug wires on many lawn mowers are 5mm with stranded core as well. > > Dennis Savarese > > > > I'll look into that. You have to be careful that the wire has got stainless > steel strands and not copper. Copper breaks down to easily. > > Jim > > "They that can give up essential liberty to obtain a little safety, > deserve neither liberty nor safety" > Benjamin Franklin 1759 > "With my shield, or on it" > Trojan Warriors BC > > ________________________________ Message 15 ____________________________________ Time: 12:01:04 PM PST US Subject: Re: Yak-List: Snot Valve From: "Jon Boede" --> Yak-List message posted by: "Jon Boede" My system pressurizes to about 42 atm... should I be looking to get a little more out of it... 45-50, or should I leave well-enough alone? Jon > --> Yak-List message posted by: ron wasson > > If the pressure relief valve sticks high ,as they all seem to do if they > get dirty ,then the snot valve open sure controls this till you get on > the ground and clean it. Beats moving the flaps up and down trying to > keep the pressure down till you can land. A new pressure valve from Doug > solved the problem but it sure is nice to know I have a backup so I > don't blow a tank. ________________________________ Message 16 ____________________________________ Time: 12:04:51 PM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: cjpilot710@aol.com In a message dated 2/21/2003 3:02:28 PM Eastern Standard Time, jon@zoso.email.net writes: > --> Yak-List message posted by: "Jon Boede" > > My system pressurizes to about 42 atm... should I be looking to get a > little more out of it... 45-50, or should I leave well-enough alone? > > Jon > I'd tighten it up about 1/8 of a turn. That should rise it some. Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 17 ____________________________________ Time: 12:09:05 PM PST US Subject: Re: Yak-List: Snot Valve From: ron wasson --> Yak-List message posted by: ron wasson If you feel comfortable with the air pressure reserve for start then don't mess with it. Understand 50 is the max. Ron ________________________________ Message 18 ____________________________________ Time: 12:16:57 PM PST US From: "Doug" Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: "Doug" Jon, You should have about 50 atms. of pressure. However make sure you check both of your pressure gauges before you panic, as I have seen them reading way low, but have never seen both reading low when the pressure was actually correct, but I guess this could happen. So if one is reading 50 and the other 42, then I would suggest you err to the safe side especially if you have not either replaced your tanks or had them cleaned and tested. Many owners are neglecting this job as it is easy to overlook. I have yet to hear of anyone having a tank blow up but just the thought of it makes me nearly soil my jet jammies when I consider the amount of structural damage it might do. always yakin, Doug Sapp ----- Original Message ----- From: "Jon Boede" Subject: Re: Yak-List: Snot Valve > --> Yak-List message posted by: "Jon Boede" > > My system pressurizes to about 42 atm... should I be looking to get a > little more out of it... 45-50, or should I leave well-enough alone? > > Jon > > > --> Yak-List message posted by: ron wasson > > > > If the pressure relief valve sticks high ,as they all seem to do if they > > get dirty ,then the snot valve open sure controls this till you get on > > the ground and clean it. Beats moving the flaps up and down trying to > > keep the pressure down till you can land. A new pressure valve from Doug > > solved the problem but it sure is nice to know I have a backup so I > > don't blow a tank. > > ________________________________ Message 19 ____________________________________ Time: 12:19:35 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: "A. Dennis Savarese" Squeezing the brake handle also works well to deplete air from an over-pressurized system. Dennis Savarese ----- Original Message ----- From: "ron wasson" Subject: Re: Yak-List: Snot Valve > --> Yak-List message posted by: ron wasson > > If the pressure relief valve sticks high ,as they all seem to do if they get > dirty ,then the snot valve open sure controls this till you get on the > ground and clean it. Beats moving the flaps up and down trying to keep the > pressure down till you can land. A new pressure valve from Doug solved the > problem but it sure is nice to know I have a backup so I don't blow a tank. > > Ron > > ________________________________ Message 20 ____________________________________ Time: 02:13:18 PM PST US Subject: Re: Yak-List: Snot Valve From: ron wasson --> Yak-List message posted by: ron wasson The nice thing about the snot valve control is this. Once the bottle is up to 50 then open the valve. Pressure relief in the standard system has only one valve. If you don't notice the pressure going high during form or cruise then the only other pressure relief is the bottle going bang. Forgetting to close the snot valve is not a big deal as you already have 50ATM Ron ________________________________ Message 21 ____________________________________ Time: 05:24:19 PM PST US Subject: Yak-List: Jurgis Kairys From: Barry Hancock --> Yak-List message posted by: Barry Hancock That's the guy who flew his Sukhoi upside down under the bridge in Europe (Lithuania?) - see the video at http://www.yakpilots.org/kairys.mpe. Well, guess who walked into my hangar at Chino, on my birthday no less? Yep. THE MAN himself! What a surprise, and what an honor. Two guys got out of their car and came inside. "May I have a look at yur aero-plane?" came the question in a thick Eastern European accent. "Sure, go ahead." His American friend says, "do you know Jurgis Kairys?" I said, "no," I mean how can I remember a name like that? He then says "have you ever seen the video of that Sukhoi flying inverted under a bridge...." "YES!, *that's* him? Wow!" So, like a playground basketball wannabe getting to meet Kobe Bryant, I strode over and enthusiastically shook his and and said, "nice to meet you, you're CRAZY!" He just smiled. We then talked at length about his stunt, and other ones like it. I asked him if he would ever do it again, and he said that it was coming up on the 5 year anniversary of his *first* flight under the bridge...that one was right side up (is there such a thing in a Sukhoi?), so he was thinking about doing it again...only in formation!...under a bigger bridge. His friend said, "I thought you said once was enough." Jurgis just smiled. So after perusing my still not flying project (this week...I swear!), he went out to the car and came back with a portfolio of other stunts, including a 8x11 glossy of him literally 12 inches above a river, inverted of course. Long story short I had him sign it for me and it's awaiting framing to go on my office wall. Apparently he was States side for a week and had a friend in LA he was visiting....soooo...they came out to Chino to look at airplanes. What a thrill for me. Having covered the NBA for 3 seasons a Kobe Bryant autograph doesn't get me excited - but I now have Jurgis Kairys' autograph, and I'm still grinning about it 4 days later. Cheers, Barry Barry Hancock Red Stars, Inc. 949.300.5510 www.allredstar.com "Communism - Lousy Politics, Great Airplanes" ________________________________ Message 22 ____________________________________ Time: 08:01:58 PM PST US From: Brian Lloyd Subject: Re: Yak-List: Snot Valve --> Yak-List message posted by: Brian Lloyd Doug wrote: > --> Yak-List message posted by: "Doug" > > Guys, > Last year I hooked my compressor so it could be opened in flight, installed > a fuel flow, and a digital tac. All in an effort to de-bunk or confirm this > claim of fuel savings or more power. I found that in cruise when the snot > valve was opened and the fuel flow and the tac were monitored, no change was > noted in either instrument. So either the measurements are so small that my > instruments could not detect them, or there was in fact no change. There is almost no change. Almost all the force required to push the piston up (compression) comes back on the down stroke unless you are actually doing the work of moving air, such as when it is really recharging the system. > Either > way I think its not worth doing. Any small gain (if there is any) is lost > when you stop to consider that you have just created another thing to cause > you grief when you least expect it. Right on brother! > Also, about pump life. Getting an excess of 600 hours out of a pump is > wishful thinking. These types of accessories seldom make engine TBO. But > considering the difficulty in R&R'ing the compressor, it would be great if > this one was a bit longer lasting. Do the Chinese pumps last longer? -- Brian Lloyd, President 6501 Red Hook Plaza, Suite 201 brian@greenflashnetworks.com St. Thomas, VI 00802 +1.340.998.9447 - voice +1.360.838.9669 - fax ________________________________ Message 23 ____________________________________ Time: 08:21:28 PM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: Jurgis Kairys --> Yak-List message posted by: cjpilot710@aol.com OK! OK! OK! Don't wet your pants! :-) I've shaken hands with Neil Armstrong, Pavoroty, Rosy Grer, Warner Von Baun, Nelson Rockefeller, Jimmy Conners, Kurt Douglas, Neal Williams, Mary Gaffney, Bevo Howard, - - - - - Meeting Kairys would be nice. Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 24 ____________________________________ Time: 08:24:41 PM PST US From: cjpilot710@aol.com Subject: Yak-List: Fwd: S&Fup date. --> Yak-List message posted by: cjpilot710@aol.com In a message dated 2/21/2003 3:43:04 PM Eastern Standard Time, cjpilot710 writes: > > Gang headed South. > > "Beware of the Ivies of March" Sage to Julius Caesar predicting his > assassination. > > Just checked with Howard Johnson in Winter Heaven. The rooms we set aside > are now full (17 on the list). However they will give any YPA member our > special rate ($64./nite) until March 15th. So take note if you have not > reserved a room. If you are worried about being to far from other WB > folks, our hotel is right next door (we used their bar) to where the EAAWB > people are staying. Real handy. > > I ordered a van for hotel transport today. So some of you may want to > consider about renting a car or not. Driving duties WILL BE SHARED as I > can't be in 6 places at once. Last year we still needed more wheels. > > The FBO has ordered up extra oil for us. (She did not believe me last year > that we would use that much, they ran out.) > > Mike and I are about to figure out the fee to charge. We will keep it as > low as we possibly can. It will help pay for the van, ready room, paper > stuff, and a few other expenses to the association. I'll let Mike handle > that detail and make that announcement. Check the YPA web site > (www.yakpilots.org) for the sign up form. > > Howard Johnson of Winter Heaven, Fl. 863-294-7321 > Enterprise Leasing of Bartow, Fl. 863-533-5167 > Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC From: cjpilot710@aol.com Subject: S&Fup date. Mike, The van will cost $548 for the week rate (cheapest) The ready room is $10.00 / day ($70.00) Room rate is $64.00/nite So far looks like 17 airplanes will be showing up. This is counting everyone. I would like to post this. Gang headed South. "Beware of the Ivies of March" Sage to Julius Caesar predicting his assassination. Just checked with Howard Johnson in Winter Heaven. The rooms we set aside are now full (17 on the list). However they will give any YPA member our special rate ($64./nite) until March 15th. So take note if you have not reserved a room. If you are worried about being to far from other WB folks, our hotel is right next door (we used their bar) to where the EAAWB people are staying. Real handy. I ordered a van for hotel transport today. So some of you may want to consider about renting a car or not. Driving duties WILL BE SHARED as I can't be in 6 places at once. Last year we still needed more wheels. The FBO has ordered up extra oil for us. (She did not believe me last year that we would use that much, they ran out.) Mike and I are about to figure out the fee to charge. We will keep it as low as we possibly can. It will help pay for the van, ready room, paper stuff, and a few other expenses to the association. I'll let Mike handle that detail and make that announcement. Check the YPA web site (www.yakpilots.org) for the sign up form. Howard Johnson of Winter Heaven, Fl. 863-294-7321 Enterprise Leasing of Bartow, Fl. 863-533-5167 Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC Mike, The van will cost $548 for the week rate (cheapest) The ready room is $10.00 / day ($70.00) Room rate is $64.00/nite So far looks like 17 airplanes will be showing up. This is counting everyone. I would like to post this. Gang headed South. "Beware of the Ivies of March" Sage to Julius Caesar predicting his assassination. Just checked with Howard Johnson in Winter Heaven. The rooms we set aside are now full (17 on the list). However they will give any YPA member our special rate ($64./nite) until March 15th. So take note if you=20have not reserved a room. If you are worried about being to far from other WB folks, our hotel is right next door (we used their bar) to where the EAAWB people are staying. Real handy. I ordered a van for hotel transport today. So some of you may want to=20consider about renting a car or not. Driving duties WILL BE SHARED as=20I can't be in 6 places at once. Last year we still needed more wheels. The FBO has ordered up extra oil for us. (She did not believe me last=20year that we would use that much, they ran out.) Mike and I are about to figure out the fee to charge. We will keep it=20as low as we possibly can. It will help pay for the van, ready room, paper stuff, and a few other expenses to the association. I'll let Mike handle that detail and make that announcement. Check the YPA web site (www.yakpilots.org) for the sign up form. Howard Johnson of Winter Heaven, Fl. 863-294-7321 Enterprise Leasing of Bartow, Fl. 863-533-5167 Jim "They that can give up essential liberty to obtain a little safety, deserve neither liberty nor safety" Benjamin Franklin 1759 "With my shield, or on it" Trojan Warriors BC ________________________________ Message 25 ____________________________________ Time: 09:56:02 PM PST US Subject: Yak-List: It's official From: Barry Hancock --> Yak-List message posted by: Barry Hancock Hi Gang, Well Drew is off to help the war effort, and I'm left to defend Red Star II and allredstar.com. I wanted to let everyone know that allredstar.com is officially open at http://www.allredstar.com/index.asp, with our new look. We hope you'll peruse the site. Again, this is a site "by members, for memebers." If there is any area you would like to contribute an article, feel free to submit one and we'll post it in the appropriate area...just like the fuel in your airplane, we'll check it for water, and then run it through the coarse and fine filters before it goes to the engine, err, site. So, no need to be shy. :) If you have any comments or questions, I'd love to hear. Please contact me directly at radialpower@cox.net, or by phone at the number below. Cheers, Barry Barry Hancock Red Stars, Inc. 949.300.5510 www.allredstar.com "Communism - Lousy Politics, Great Airplanes"