Glow Engines Discuss RC glow engines

UMS Evolution Radial Care and Operation

Reply
Old 01-10-2013, 08:25 PM
  #701
Pull Up Now!
 
Pull Up Now!'s Avatar
 
Join Date: Aug 2008
Location: Northfield, MN
Posts: 669
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

SLSKN, thanks for the comments about my home made Evolution 777 radial exhaust collector ring. I bought the sprinkler at Lowes Home Center. It cost about $35. I went in there with a tape measure and went thru the whole store looking for any part of anything that might have a metal tubular ring about the right size. There were a couple lamps that had rings that were close, but the tube diameter was too small. The next best candidates were electrical conduit 90 deg segments. Then, I saw the sprinkler ring, measured it, and became convinced this copper ring would be perfect. I went around the store looking for a magnet to make sure the ring was a non-ferrous metal to make sure it was either brass or copper. The rings were non-magnetic, but I didn't expect it to be because the ring was stainless steel. But it was. The aluminum tube clamps come from my mind. I made them myself on my milling machine.
Pull Up Now! is offline  
Reply With Quote
Old 01-10-2013, 09:06 PM
  #702
slskn
 
Join Date: Sep 2005
Location: Montrose, MI
Posts: 194
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation


[quote]ORIGINAL: Pull Up Now!

SLSKN, thanks for the comments about my home made Evolution 777 radial exhaust collector ring. I bought the sprinkler at Lowes Home Center. It cost about $35. I went in there with a tape measure and went thru the whole store looking for any part of anything that might have a metal tubular ring about the right size. There were a couple lamps that had rings that were close, but the tube diameter was too small. The next best candidates were electrical conduit 90 deg segments. Then, I saw the sprinkler ring, measured it, and became convinced this copper ring would be perfect. I went around the store looking for a magnet to make sure the ring was a non-ferrous metal to make sure it was either brass or copper. The rings were non-magnetic, but I didn't expect it to be because the ring was stainless steel. But it was. The aluminum tube clamps come from my mind. I made them myself on my milling machine. Just brilliant. Hope I CAN MAKE THEM ALSO
I am going to try
slskn is offline  
Reply With Quote
Old 01-10-2013, 09:54 PM
  #703
cymaz
 
cymaz's Avatar
 
Join Date: Aug 2007
Location: UK
Posts: 642
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

In the future I will post some video of my 777 flying the 1/4 scale GW Meteor
cymaz is offline  
Reply With Quote
Old 02-14-2013, 11:50 AM
  #704
Linkan2
 
Join Date: Oct 2010
Location: Haninge, SWEDEN
Posts: 177
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

A member of the club took this video on my Stearman.
Now, the exhaust ring mounted on the UMS 7-35.
So listen and enjoy the sound

http://www.youtube.com/watch?v=38SLpmwj-ug

Lars
Linkan2 is online now  
Reply With Quote
Old 02-14-2013, 12:25 PM
  #705
pappy 883
 
Join Date: Jan 2005
Location: San Diego, CA
Posts: 222
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Way to go Lars ! looks and sounds great!
pappy 883 is offline  
Reply With Quote
Old 02-14-2013, 01:05 PM
  #706
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Lars, I also like how the collector ring is close to the fuselage so there is little gap. looks real good. -Tom
Maxam is online now  
Reply With Quote
Old 02-16-2013, 09:46 PM
  #707
ILiv2Fly
 
Join Date: Mar 2004
Location: Cambridge, MN
Posts: 1
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

I feel like a bit of an ass posting here, but I'm desperate for some input. I just bought an EVO 777 for a, still in the box, TF Corsair. I just ordered a Super Corsair cowl from fiberglass specialties, which should give me a little more wiggle room inside the cowl. If not, I'll cast a larger cowl based on the fiberglass specialties super corsair pattern so I don't have to be so exact, hopefully, in mounting my motor. Why wouldn't I want to be so exacting in my build. Well, to tell you the truth, I haven't much experience and what experience I did have was forgotten in the midst of a gruelingly long divorce, the death of a child, and a long descent into depression that lasted well over a decade. To revive my building skills, I started a TF Cessna 182 on 01/06/13 and am nearly done with the exception of painting the full, fiberglassed structure. I haven't been on this forum for nearly a decade and have no idea how to start a thread, so please excuse my intrusion here. I'd like to post something about my TF Cessna 182 build, the F4U Corsair odyssey, and the total experience of the Evo 777 from receipt to maiden flight, but have absolutely no idea how to navigate the site.
ILiv2Fly is offline  
Reply With Quote
Old 02-17-2013, 04:25 AM
  #708
Pull Up Now!
 
Pull Up Now!'s Avatar
 
Join Date: Aug 2008
Location: Northfield, MN
Posts: 669
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Go to this link, and then hit the "NEW POST" button near the top, on the left.

The reason your're not seeing the button you want yet is because you need to select the subject, and sub-category before the button appears.

I selected Scale Aircraft Build for you, but you don't have to put it there, for example, if the plane is giant scale. There's a separate category for that.

http://www.rcuniverse.com/forum/forumid_169/tt.htm
Pull Up Now! is offline  
Reply With Quote
Old 02-20-2013, 08:18 PM
  #709
retransit
 
retransit's Avatar
 
Join Date: Apr 2004
Location: DeBary, FL
Posts: 1,329
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Maxam, I have a couple of questions. Forgive me if they have been answered before. I realize that the manufacturer calls for 7% oil. Is it the bearings in these engines, as opposed to others, that allow the use of lower oil content fuel? If so, what type of bearings are used?

Another question I have concerns the engine I want to use in a 1/5 scale Boeing Model 40 at approximately 108 inches of wingspan. I was looking at the 99cc nine cylinder because of its size and number of cylinders. I don't know what the all-up weight will be, but I suspect around 30 lbs. The prototype's Wasp is 51 inches in diameter and the 99cc falls right at 1/5 with 10.2 inches. Do you think this engine will work for me as far as power is concerned?

Bob
retransit is offline  
Reply With Quote
Old 02-21-2013, 02:43 AM
  #710
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Bob, The fuel mixture flows over the bearings, not from just piston blow-by like most 4 cycle engines do. Also the master rod is on roller bearings which require little oil. The bearings are just good quality, nothing exotic. I run 8% after break in.

Sounds like that Boeing model 40 is a formidable project. My older 9-90 (now 99) flies my 25 pound Robin Hood 99 with authority! I am using a 24x12 prop. Now it is a lower wing loading type plane. It would seem that you would have strong performance and the sound.......
Maxam is online now  
Reply With Quote
Old 02-21-2013, 06:22 AM
  #711
slskn
 
Join Date: Sep 2005
Location: Montrose, MI
Posts: 194
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation


Quote:
ORIGINAL: retransit

Maxam, I have a couple of questions. Forgive me if they have been answered before. I realize that the manufacturer calls for 7% oil. Is it the bearings in these engines, as opposed to others, that allow the use of lower oil content fuel? If so, what type of bearings are used?

Another question I have concerns the engine I want to use in a 1/5 scale Boeing Model 40 at approximately 108 inches of wingspan. I was looking at the 99cc nine cylinder because of its size and number of cylinders. I don't know what the all-up weight will be, but I suspect around 30 lbs. The prototype's Wasp is 51 inches in diameter and the 99cc falls right at 1/5 with 10.2 inches. Do you think this engine will work for me as far as power is concerned?

Bob
Bob check out my corsair on post #684 with the 9-99 and 24x12 2 blade prop weighs 36lbs. no lack of power there.
slskn is offline  
Reply With Quote
Old 02-21-2013, 08:26 AM
  #712
retransit
 
retransit's Avatar
 
Join Date: Apr 2004
Location: DeBary, FL
Posts: 1,329
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Thanks for the answers, guys, Looks like it's a go then. I particularly like the reduced oil slime resulting from lower oil content. I've got an ASP 4.00 in my Fleet, pictured below, that throws the stuff all over the place. Excuse me while I get back to drawing a set of plans.

Bob
Attached Thumbnails
Click image for larger version

Name:	Jh15927.jpg
Views:	59
Size:	169.5 KB
ID:	1854625  
retransit is offline  
Reply With Quote
Old 02-21-2013, 08:31 AM
  #713
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

What a cool plane!!
Maxam is online now  
Reply With Quote
Old 02-21-2013, 10:17 AM
  #714
retransit
 
retransit's Avatar
 
Join Date: Apr 2004
Location: DeBary, FL
Posts: 1,329
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

That's the latest version. I had one last year and dorked it. Caused me to build one from plans. It is a Concept Models Fleet. 25.5 lbs. at 1/4 scale.

Bob
retransit is offline  
Reply With Quote
Old 02-21-2013, 10:36 PM
  #715
cymaz
 
cymaz's Avatar
 
Join Date: Aug 2007
Location: UK
Posts: 642
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

I put a 7-77 to good use, 1/4 scale meteor monoplane 27lbs and flies with authority on that size radial. Even lands nicely on 6 cylinders!! Lost a push rod, it sounded "funny" so landed then I noticed the missing rod.
Attached Images
 
cymaz is offline  
Reply With Quote
Old 02-27-2013, 06:47 AM
  #716
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Have any of you ever been to Oshkosh Air Venture? This would be a good year to go because the Radial engine is featured this year. If you have never been you owe it to yourself to go. There are cheap dorm rooms to stay nearby at the local university. Oshkosh can be very motivating to get you to build a scale plane! -Tom
Maxam is online now  
Reply With Quote
Old 02-27-2013, 06:54 AM
  #717
slskn
 
Join Date: Sep 2005
Location: Montrose, MI
Posts: 194
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation


Quote:
ORIGINAL: Maxam

Have any of you ever been to Oshkosh Air Venture? This would be a good year to go because the Radial engine is featured this year. If you have never been you owe it to yourself to go. There are cheap dorm rooms to stay nearby at the local university. Oshkosh can be very motivating to get you to build a scale plane! -Tom
Been there several times Tom definitely worth going there's nothing else like it.
slskn is offline  
Reply With Quote
Old 02-27-2013, 07:02 AM
  #718
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

This will be my 4th time. The first year I went I got an hour and 10 minute ride in a B-17 for 50 dollars!! Those days are over!
Maxam is online now  
Reply With Quote
Old 02-28-2013, 04:42 AM
  #719
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Spring will be soon! Thought I would put out a check list before we start our radials.
1. Remove those bottom plugs to drain the collected oil.
2. Turn the prop over by hand slowly to clear if needed other cylinders.
3. Using fresh oil on the followers, rockers and springs.
4. Were the valve clearances checked? If not check and adjust following those important instructions early in this thread.
5, Cycle your battery that lights the plugs.
6. I hope the engine was well oiled before being put away. Does it feel crunchy when turning the prop?
7. Remove a bottom tappet to drain excess oil accumulated in the bottom of the cam housing.
Have a great flying season! -Tom
Maxam is online now  
Reply With Quote
Old 03-02-2013, 01:32 AM
  #720
Linkan2
 
Join Date: Oct 2010
Location: Haninge, SWEDEN
Posts: 177
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

The va well written Tom
You could call them for the 7 Commandments for radial engines
Lars
Linkan2 is online now  
Reply With Quote
Old 03-03-2013, 09:02 AM
  #721
Pull Up Now!
 
Pull Up Now!'s Avatar
 
Join Date: Aug 2008
Location: Northfield, MN
Posts: 669
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation


Quote:
ORIGINAL: Maxam

This will be my 4th time. The first year I went I got an hour and 10 minute ride in a B-17 for 50 dollars!! Those days are over!
uhhhh gosh! WHEN was that??
Pull Up Now! is offline  
Reply With Quote
Old 03-03-2013, 09:44 AM
  #722
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Thank you Linkan!
My B-17 ride was in 1982 in Dr. Ralph Hospers plane with the yellow tail. I think rides now run $450.00 for a 20 minute flight.
Maxam is online now  
Reply With Quote
Old 03-04-2013, 01:02 AM
  #723
Reverend
 
Reverend's Avatar
 
Join Date: Aug 2003
Location: near Innsbruck, AUSTRIA
Posts: 577
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation


Quote:
ORIGINAL: Maxam

Spring will be soon! Thought I would put out a check list before we start our radials.
1. Remove those bottom plugs to drain the collected oil.
2. Turn the prop over by hand slowly to clear if needed other cylinders.
3. Using fresh oil on the followers, rockers and springs.
4. Were the valve clearances checked? If not check and adjust following those important instructions early in this thread.
5, Cycle your battery that lights the plugs.
6. I hope the engine was well oiled before being put away. Does it feel crunchy when turning the prop?
7. Remove a bottom tappet to drain excess oil accumulated in the bottom of the cam housing.
Have a great flying season! -Tom
...and following these great instructions I dragged the Evo out in front of the photografic wallpaper and started it up. First start took about 20 flips although primed well but after that it started at the first flip every time.

can't wait to get that stearman in the air

[youtube]http://www.youtube.com/watch?v=rz0wXv8RWQI[/youtube]

Rev
Reverend is offline  
Reply With Quote
Old 03-04-2013, 04:45 AM
  #724
Maxam
Thread Starter
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 973
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Rev. Is that snow on the ground? These engines are difficult to start in the cold. Your engine sounds terrific! I am looking forward to seeing your stearman completed and flying. -Tom
Maxam is online now  
Reply With Quote
Old 03-04-2013, 05:07 AM
  #725
Reverend
 
Reverend's Avatar
 
Join Date: Aug 2003
Location: near Innsbruck, AUSTRIA
Posts: 577
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: UMS Evolution Radial Care and Operation

Yes, that is snow. It was 5° C on Saturday. Would be great if the engine started easier in warmth. My shoulder hurts a bit :P

The sound is really great but the credit goes entirely to Keleo Creations. Those Rings are just brilliant sound wise, be it on the FS 400 or the Evo 7-77.

Rev

Reverend is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 02:29 PM.