UMS Evolution Radial Care and Operation
06-15-2012 | 07:53 AM
#402
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From: Fresno,
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RE: UMS Evolution Radial Care and Operation
Hey Orion09 thanks for sharing that great video. Broken elevator is a bit scary - any idea what caused the flutter and how to correct that problem?
Roger
Roger
06-16-2012 | 04:34 AM
#404
Thread Starter
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RE: UMS Evolution Radial Care and Operation
Nice corsair and you seemed to have plenty of power!
I got back in town from Germany this wednesday and have already been to my flying field twice. Recall my discussion on corrosion with the 9-90 a couple of weeks ago. I believe I have an effective program now. You have completed your last flight for the day. Now allow the engine to cool down fully after running the fuel out of it. Then remove one of the bottom most pushrods and follower. Allow the oil to drain. If you have a white bottle cap to catch some of the oil you will see water globules in with the oil. Now remove one of the upper rods and follower. Inject in air tool oil (10 ml) and rotate the prop a few times and soon much oil will drain out the bottom tappet hole. It will still have a few globules but less and the oil will be clearer. Repeat one more time and put the followers back along with the push rods. I can do this even with a cowled engine. The next day the engines were slicker than ever. Just this morning I checked the engine that was run two days ago and yep smooth as silk. This sounds like much work. Took less than 5 minutes and now no worries!! The 9-90 now has 80 flights and is solid as a rock. -Tom
I got back in town from Germany this wednesday and have already been to my flying field twice. Recall my discussion on corrosion with the 9-90 a couple of weeks ago. I believe I have an effective program now. You have completed your last flight for the day. Now allow the engine to cool down fully after running the fuel out of it. Then remove one of the bottom most pushrods and follower. Allow the oil to drain. If you have a white bottle cap to catch some of the oil you will see water globules in with the oil. Now remove one of the upper rods and follower. Inject in air tool oil (10 ml) and rotate the prop a few times and soon much oil will drain out the bottom tappet hole. It will still have a few globules but less and the oil will be clearer. Repeat one more time and put the followers back along with the push rods. I can do this even with a cowled engine. The next day the engines were slicker than ever. Just this morning I checked the engine that was run two days ago and yep smooth as silk. This sounds like much work. Took less than 5 minutes and now no worries!! The 9-90 now has 80 flights and is solid as a rock. -Tom
06-17-2012 | 06:12 PM
#405
My Feedback: (4)
RE: UMS Evolution Radial Care and Operation
ORIGINAL: Orion09
http://www.youtube.com/watch?v=I5O5uBxPl0A Got the first and second flight in.Had some flutter on the elevator but landed safely.Engine runs great. Pete
http://www.youtube.com/watch?v=I5O5uBxPl0A Got the first and second flight in.Had some flutter on the elevator but landed safely.Engine runs great. Pete
well, I took out my Corsair out a few days ago and could not get it to run properly, right after I did two things, I adjusted the valves and used the correct fuel, and l could not get it to run over half throttle, so home I went and tried to change back to the old fuel that I was running before, and still no luck, then realized the only thing next was to check out the valve adjusting, then I realized I had used the wrong feelers gauge thinking that these are the ones I use on my other 4 stroke engines, which are 0.040- to 0.010, so back to the manuel and seen the correct .004- to .006, so I plan on getting the correct gauges tomorrow and re-lash those valves again and hope fully get them right and hopefully run a lot better this week, if it works I will be tickled pink again- Steve
06-17-2012 | 06:20 PM
#406
My Feedback: (4)
RE: UMS Evolution Radial Care and Operation
ORIGINAL: Heli-NuBee
The Microsens on board glow system arrived today. The glow system LiPo battery is in route and the Tru Turn prop hub has been ordered. I hope to have this engine running in just a few weeks now.
Roger
The Microsens on board glow system arrived today. The glow system LiPo battery is in route and the Tru Turn prop hub has been ordered. I hope to have this engine running in just a few weeks now.
Roger
06-18-2012 | 12:16 PM
#407
RE: UMS Evolution Radial Care and Operation
Maybe I can answer this.I used microsens driver,balancer and wires which cost €160 or about $200 us.They recommend a 1s 3600 mAh lipo.I use a 5000 mAh lipo from Tower which is still smaller than a deck of cards.Depending on how long you keep the plugs lit I think it would last for a days flying.No voltage reg.Im new to radials but Im happy with the system.Easy to program but the size of the onboard unlts and battery sold me on it.Heres a pic of the balancer,the wires exiting the bottom go to the glow driver behind the firewall. Pete PS thanks for the link to the decals.
06-18-2012 | 01:28 PM
#410
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My Feedback: (62)
RE: UMS Evolution Radial Care and Operation
Look at post #11! and no the engine actually runs better on hot days! This corsair does have the curved front fuselage like yours for good cooling and the cowl flaps are molded open which also helps. Just flew it on friday and it was near 90F and the engine could be touched after landing. -Tom
06-19-2012 | 06:21 AM
#412
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From: Fresno,
CA
RE: UMS Evolution Radial Care and Operation
My Microsens system with balancer and plug wires cost approx. $215.00 with shipping. I will be using a 5600 MAH 1S liPo battery. A voltage regulator is not required. I have started assembling a BH Corsair for my engine. It will still be a while before I run my engine but at least it is now in progress.
Roger
Roger
06-19-2012 | 05:23 PM
#414
My Feedback: (4)
RE: UMS Evolution Radial Care and Operation
ORIGINAL: slskn
LOOKS GREAT Pete, looks like plenty of power, and sounds great.
well, I took out my Corsair out a few days ago and could not get it to run properly, right after I did two things, I adjusted the valves and used the correct fuel, and l could not get it to run over half throttle, so home I went and tried to change back to the old fuel that I was running before, and still no luck, then realized the only thing next was to check out the valve adjusting, then I realized I had used the wrong feelers gauge thinking that these are the ones I use on my other 4 stroke engines, which are 0.040- to 0.010, so back to the manuel and seen the correct .004- to .006, so I plan on getting the correct gauges tomorrow and re-lash those valves again and hope fully get them right and hopefully run a lot better this week, if it works I will be tickled pink again- Steve
well, more trouble could not get the engine to run just under half throttle, rechecked the valves and still did not run any better, a friend came over and he determined that sounded like the carb was starving for fuel just below half throttle so, we took the carb off and found that the spray bar was full of crap and plugged solid,could not blow though it or nothing so took a pin and poked through the spray bar and flushed it out and put it back together and man what a difference, runs like a million bucks, even pick up a few RPMs now the 9 cyl, runs the 24x12x2 @ 56-5700 rpms and pulls like a son-of-gun, now its time to rip the sky`s and get those Japs-Steve.
ORIGINAL: Orion09
http://www.youtube.com/watch?v=I5O5uBxPl0A Got the first and second flight in.Had some flutter on the elevator but landed safely.Engine runs great. Pete
http://www.youtube.com/watch?v=I5O5uBxPl0A Got the first and second flight in.Had some flutter on the elevator but landed safely.Engine runs great. Pete
well, I took out my Corsair out a few days ago and could not get it to run properly, right after I did two things, I adjusted the valves and used the correct fuel, and l could not get it to run over half throttle, so home I went and tried to change back to the old fuel that I was running before, and still no luck, then realized the only thing next was to check out the valve adjusting, then I realized I had used the wrong feelers gauge thinking that these are the ones I use on my other 4 stroke engines, which are 0.040- to 0.010, so back to the manuel and seen the correct .004- to .006, so I plan on getting the correct gauges tomorrow and re-lash those valves again and hope fully get them right and hopefully run a lot better this week, if it works I will be tickled pink again- Steve
well, more trouble could not get the engine to run just under half throttle, rechecked the valves and still did not run any better, a friend came over and he determined that sounded like the carb was starving for fuel just below half throttle so, we took the carb off and found that the spray bar was full of crap and plugged solid,could not blow though it or nothing so took a pin and poked through the spray bar and flushed it out and put it back together and man what a difference, runs like a million bucks, even pick up a few RPMs now the 9 cyl, runs the 24x12x2 @ 56-5700 rpms and pulls like a son-of-gun, now its time to rip the sky`s and get those Japs-Steve.
06-19-2012 | 05:38 PM
#415
Senior Member
RE: UMS Evolution Radial Care and Operation
Fuel filters. They are the cheapest insurance. Filter it from the jug to the airplane and from the fuel tank to the carb. It will remove sOme stressful moments from your life.
Pete<br type="_moz" />
Pete<br type="_moz" />
06-20-2012 | 10:32 AM
#416
My Feedback: (4)
RE: UMS Evolution Radial Care and Operation
ORIGINAL: Pete Bergstrom
Fuel filters. They are the cheapest insurance. Filter it from the jug to the airplane and from the fuel tank to the carb. It will remove sOme stressful moments from your life.
Pete<br type=''_moz'' />
Fuel filters. They are the cheapest insurance. Filter it from the jug to the airplane and from the fuel tank to the carb. It will remove sOme stressful moments from your life.
Pete<br type=''_moz'' />
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jfassino (05-02-2020)
06-23-2012 | 06:12 PM
#417
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From: Fresno,
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RE: UMS Evolution Radial Care and Operation
Does anyone know what size wrench is needed for the nut on the rocker arms of the EVO 7-77 for adjusting the valve clearance?
Roger
Roger
07-06-2012 | 07:18 AM
#421
My Feedback: (4)
RE: UMS Evolution Radial Care and Operation
ORIGINAL: slskn
well here is the maiden on the Ziroli Corsair (very poor video from my 13 year old) but, is the first flight on a very windy day 15 Gusting to 20 MPH winds, and right down the runway, not a good day to test but doing it while I had the time. a lot was edited out to skip the mostly sky, next time I will get a better video. I was surprized, had more power than I thought, fly`s faster than it did with the Saito 450 3 cyl. and with much more authority, again 93ins. wing 36 lbs. 24x12x2 xoar prop at between 5,500 and 5,700 RPM, robart air retracts, and was very pleased with the performance, I am walking on cloud 9 again. -Steve
http://www.youtube.com/watch?v=jHG6TxthaOY
http://www.youtube.com/watch?v=h1nZYMoYIuk
well here is the maiden on the Ziroli Corsair (very poor video from my 13 year old) but, is the first flight on a very windy day 15 Gusting to 20 MPH winds, and right down the runway, not a good day to test but doing it while I had the time. a lot was edited out to skip the mostly sky, next time I will get a better video. I was surprized, had more power than I thought, fly`s faster than it did with the Saito 450 3 cyl. and with much more authority, again 93ins. wing 36 lbs. 24x12x2 xoar prop at between 5,500 and 5,700 RPM, robart air retracts, and was very pleased with the performance, I am walking on cloud 9 again. -Steve
http://www.youtube.com/watch?v=jHG6TxthaOY
http://www.youtube.com/watch?v=h1nZYMoYIuk
07-07-2012 | 04:43 AM
#422
Senior Member
RE: UMS Evolution Radial Care and Operation
<span id="result_box" lang="en"><span class="hps">finally</span> <span class="hps">I have got</span> <span class="hps">to fly</span> <span class="hps">Stearman</span> <span class="hps">/ UMS</span> <span class="hps">7-35</span><span>.</span>
<span class="hps">On July 1,</span> <span class="hps">was I</span> <span class="hps">took</span> <span class="hps">out</span> <span class="hps">some</span> <span class="hps">flight session</span><span>, now with</span> <span class="hps">an exhaust</span> <span class="hps">ring</span> <span class="hps">from</span> <span class="hps">Keleo</span><span>.</span>
<span class="hps">It fits</span> <span class="hps">in nicely</span> <span class="hps">and the sound is</span><span class="hps"></span> <span class="hps">good.</span>
<span class="hps">The best part is</span> <span class="hps">that you do not</span> <span class="hps">have</span> <span class="hps">any oil</span> <span class="hps">on the aircraft.</span>
<span class="hps">so</span> <span class="hps">now we just</span> <span class="hps">keep</span> <span class="hps">our fingers crossed for</span> <span class="hps">good</span> <span class="hps">flying weather
Lars<br type="_moz"/></span></span>
<span class="hps">On July 1,</span> <span class="hps">was I</span> <span class="hps">took</span> <span class="hps">out</span> <span class="hps">some</span> <span class="hps">flight session</span><span>, now with</span> <span class="hps">an exhaust</span> <span class="hps">ring</span> <span class="hps">from</span> <span class="hps">Keleo</span><span>.</span>
<span class="hps">It fits</span> <span class="hps">in nicely</span> <span class="hps">and the sound is</span><span class="hps"></span> <span class="hps">good.</span>
<span class="hps">The best part is</span> <span class="hps">that you do not</span> <span class="hps">have</span> <span class="hps">any oil</span> <span class="hps">on the aircraft.</span>
<span class="hps">so</span> <span class="hps">now we just</span> <span class="hps">keep</span> <span class="hps">our fingers crossed for</span> <span class="hps">good</span> <span class="hps">flying weather
Lars<br type="_moz"/></span></span>
07-10-2012 | 01:25 PM
#424
RE: UMS Evolution Radial Care and Operation
Was out today with my ESM Corsair trying a Biella 3 blade 22-10 on my 777 radial.Does anyone want to buy a Biella 3 blade 22-10? Amazing lack of power compared to the 22-12 2 blade I was using.Barely got it in the air.
07-11-2012 | 09:06 AM
#425
My Feedback: (4)
RE: UMS Evolution Radial Care and Operation
ORIGINAL: Orion09
Was out today with my ESM Corsair trying a Biella 3 blade 22-10 on my 777 radial.Does anyone want to buy a Biella 3 blade 22-10? Amazing lack of power compared to the 22-12 2 blade I was using.Barely got it in the air.
Was out today with my ESM Corsair trying a Biella 3 blade 22-10 on my 777 radial.Does anyone want to buy a Biella 3 blade 22-10? Amazing lack of power compared to the 22-12 2 blade I was using.Barely got it in the air.
