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Search: Posts Made By: radial1951
Showing results 1 to 25 of 36
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Forum: Glow Engines
09-27-2013, 11:23 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hey red, that's good. Wise decision, I think....

Hey red, that's good. Wise decision, I think. Let's hope it has a long life...

Regards, RossG
radial1951
_____________
Forum: Glow Engines
09-26-2013, 08:39 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hi redball8, Which bends first, the crank or...

Hi redball8,

Which bends first, the crank or the front bearing mount? ;-) It will only feel like a "slight force" because the engine will be used as a big lever. The force still ends up with the...
Forum: Glow Engines
09-10-2013, 05:03 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hmm, that's strange. OS #8 is rated as 2 stroke...

Hmm, that's strange. OS #8 is rated as 2 stroke glow plug... Are they the original plugs? (My 777 came with OS F type)

Regards, RossG
radial1951
_____________

Edit: Just remembered something,...
Forum: Glow Engines
08-29-2013, 11:08 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

In the case of these model radials, it wouldn't...

In the case of these model radials, it wouldn't make much difference if the pushrods were steel or alumin(i)um. The chrome plated alloy cylinder barrels of the Saito and EVO will expand far more than...
Forum: Glow Engines
08-27-2013, 01:25 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hi Bill, Thank you for that, all makes sense...

Hi Bill,

Thank you for that, all makes sense now. Neat design, as expected when Wolfgang Seidel has a hand in things...

These shell type bearings are drawn sheet metal and may be out of round...
Forum: Glow Engines
08-26-2013, 06:10 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hi Red I forgot about Lars' pics. Thanks,...

Hi Red

I forgot about Lars' pics. Thanks, excellent shots. I see the bearing number appears to be INA HK1018. Strange, I can't find a reference to that code. Is yours HK1012, caged or full...
Forum: Glow Engines
08-26-2013, 02:06 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hi Red The needle bearing is obviously...

Hi Red

The needle bearing is obviously designed to run on a certain size shaft, so a check of the crankpin diameter with a micrometer might be a good idea. On a bearing of that small size you...
Forum: Glow Engines
08-10-2013, 05:25 AM
Replies: 2,647
Views: 522,745
Posted By radial1951

Hi Steve A new engine under warranty!! What...

Hi Steve

A new engine under warranty!! What brought that on? I could only find you had some pushrods fall out and the blue paint in the writing dissolved...

Regards, RossG.
radial1951...
Forum: Glow Engines
07-14-2013, 05:13 AM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

Hi Dan,

Take care not tocompare the6% oilrequirements of the Evo-Seidel-UMS type radials with the18% oilneeds of the OS-Saito-ASP type radial engines.

The Evo type engines use the crankcase as...
Forum: Glow Engines
08-22-2012, 12:47 AM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Thanks for that Roger. They have a great range, and almost any size. Lots of Warbird art...

Regards, RossG
radial1951
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Forum: Glow Engines
08-20-2012, 06:32 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Good job, Roger. Don't they sound great? Mine is still NIB. Must get a round tewit soon.
Love the nose art. I guess the model had to pose several (many) times for you to get it just right.... :-)...
Forum: Glow Engines
08-17-2012, 01:29 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi Pete Orion09, to confirm your calcs, your total mix will be 2570ml, of which 150ml is Nitro, and 180ml is Oil.

Sooo, the Nitro is 150 / 2570 = 0.0584 x 100 /1 = 5.8% and the Oil is 180 /...
Forum: Glow Engines
08-09-2012, 04:04 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

I'd say it would have a good chance of going into ORBIT...!!!! What plane is it?

FWIW the CMPro 83" 20-22lb Zero flies really well with a Saito 325 or ASP-Magnum 400 and 20 x 10 prop. The 7-77...
Forum: Glow Engines
05-06-2012, 07:57 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi Steve

Excellent video! What a nice job, really looks and sounds the part.Congratulations.

Regards, RossG
radial1951
______________
Forum: Glow Engines
04-25-2012, 05:49 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi Heli-NuBee

Glad to hear it. I was hoping you would/could do that, but didn't want to be the one to suggest it, if you know what I mean... Plan B was to suggest you get a Saito R5 to fit the...
Forum: Glow Engines
04-25-2012, 05:47 AM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi Heli-NuBee

I'm not sure you want to see these photos. The cowl is pushed over the engine as far as it will go and is tight. The prop driver is about 3/4" inside the front edge of the cowl....
Forum: Glow Engines
04-04-2012, 09:09 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi Roger
Using muffler pressure to assist fuel feed is no worse for the EVO radials than any other engines. The point is, it's not good for any of them. The possibilty of putting combustion...
Forum: Glow Engines
03-25-2012, 09:24 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
booker-RCU,

There are a few reasons why one cylinder may run cooler than the others. As Tom says, it may be a plug fouled slightly with oil. OR it may be a DUD plug that just doesn't ignite the...
Forum: Glow Engines
03-25-2012, 07:55 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
slskn, Wow, that is one nice setup in your Corsair!! Looks great. What prop is that? Where from? $$?

Don't forget to video the start up!

Regards, RossG
radial1951
_____________<br...
Forum: Glow Engines
03-18-2012, 08:49 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi DamBo,

If you are refering to Mobil DTE Light, you will find it is NOT a synthetic oil and may not be compatible with alcohol fuel (methanol).

DTE is widely used in model turbines,...
Forum: Glow Engines
03-11-2012, 02:39 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Well donecymaz!We need pictures and avideo asap!

BTW,did you make the exhaust ring in the pic below? Are they the original EVO header pipes, if so how are they fixed to the main ring? What is...
Forum: Glow Engines
03-11-2012, 01:47 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Greg

Thanks for the info, ARFs often have low cost wheels. Plastic hubs running on plated wire axles....

Careful if you restrict airflow over the cam drive housing. The Saitos get quite hot...
Forum: Glow Engines
03-10-2012, 04:25 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Hi Greg

That's <u>exactly</u> the GeeBee I was refering to. Looks great, love the telescopic wheel pants. Didn't you originally plan to put the 7-70 in a Peashooter? I looked up some of your...
Forum: Glow Engines
03-08-2012, 05:42 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Yikes! 23x14 x4 blades!! That is some serious pitch. The EVO book only suggests a 24x12 x2 blade...

Steve, I think Tom is on the right track. The 22x10 x4 you already have seems a bit small, so...
Forum: Glow Engines
03-07-2012, 09:08 PM
Replies: 2,647
Views: 522,745
Posted By radial1951

RE: UMS Evolution Radial Care and Operation

*
Sorry 'bout that! Yes, a bit unfair asking you to stick your neck out on something as vague as propellor selection...

You are right, I didn't consider the differences in engine performance. The...
Showing results 1 to 25 of 36
 
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