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Old 09-24-2020, 05:35 PM
  #48151  
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Hey, that's great Mike. Are you feeling better already, or does it take a while?

Oh wait, is a heart cath a test, or an operation?

Last edited by Glowgeek; 09-24-2020 at 05:37 PM.
Old 09-24-2020, 06:17 PM
  #48152  
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Lonnie,

I do believe that was the box for the old Gemini 2 . Had a early and late 120 and a pair of 160 Gemini. Fine engines.
I have a box of NOS parts but have not seen it since the move.



Originally Posted by acdii
I have a Stanley Workmate to clamp the test stand to and an 80 pound battery box to keep it from moving. Largest I ran so far is the FG-30. It puts the engine at just the right height.

Wow!

You and Dave are running some huge thrust engines! Eighty pounds? Awesome...,
Old 09-24-2020, 08:02 PM
  #48153  
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Originally Posted by Glowgeek
Hey, that's great Mike. Are you feeling better already, or does it take a while?

Oh wait, is a heart cath a test, or an operation?
It is a test my neck is sore and I have to be careful not to open it back up but I am still feeling better after the trip to the hospital. I can't walk a half a block without the pain coming back so taking it easy is still the order of the day.
Old 09-24-2020, 11:02 PM
  #48154  
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Gary you could send that $20 note downunder to see if it still works your fa170r3 gk looks better than my plain jane fa200r3.

Boys i think we have too many people named mike on this thread and it gets confusing, so i have a suggestion. They could each chose mike or mick or michael. Or maybe the other meaning for mike like pa system or megaphone or microphone because i think loudhailer okc has a certain ring to it did you know michael is an old hebrew name meaning " Who is like God? " someone here will snap that up for sure.....
Old 09-25-2020, 02:32 AM
  #48155  
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Pete, I see that the exhaust ports on the 170 and 200 are on the side rather than partway around the back. Maybe that does make the Keleo easier to mount.
Old 09-25-2020, 03:07 AM
  #48156  
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Exhaust ports quartered toward the rear on the 120 R-3
Old 09-25-2020, 04:16 AM
  #48157  
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Originally Posted by Jesse Open
Lonnie,

I do believe that was the box for the old Gemini 2 . Had a early and late 120 and a pair of 160 Gemini. Fine engines.
I have a box of NOS parts but have not seen it since the move.






Wow!

You and Dave are running some huge thrust engines! Eighty pounds? Awesome...,
A 24 hp engine spinning a 30x20 at 5900 rpm could tip that test bench over. Be careful with your big engines fellas.

Gary, that box of nos os parts would be fun to rummage through. Let me know if it ever turns up.

Last edited by Glowgeek; 09-25-2020 at 04:19 AM.
Old 09-25-2020, 04:39 AM
  #48158  
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Originally Posted by Monty Python
Gary you could send that $20 note downunder to see if it still works your fa170r3 gk looks better than my plain jane fa200r3.

Boys i think we have too many people named mike on this thread and it gets confusing, so i have a suggestion. They could each chose mike or mick or michael. Or maybe the other meaning for mike like pa system or megaphone or microphone because i think loudhailer okc has a certain ring to it did you know michael is an old hebrew name meaning " Who is like God? " someone here will snap that up for sure.....
What can I say Mike is so common you can't wing a dead cat wihout hitting one!

Mike
Old 09-25-2020, 04:53 AM
  #48159  
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Originally Posted by acdii
Thats how my LT-40 is set up, a single dual output Life. It powers the RX, 4 servos and the FG-11 CDI. Can fly a couple hours before a recharge too. Looking at the weights, the OBG I am looking at it the most beneficial, and least expensive option. $75 vs $250 for CDI.

Question though on GP. When all three are connected together, with a single ground, is the voltage still 1.5V? It's the lack of current that is the issue here, right? I ordered 4 of those 5/8" twist lock GP connectors, I still need one for my Liberty Sport, so ordered enough for both planes. $7 each from RadicalRC.
Correct. I marry 3000 maH c cells together in four packs. Then connect the four packs to a common connector. Then the motor gets a wiring harness that grounds with a single 12 gage wire to the case and individuals to the plugs Nice bright glo, easy starts. No obd weight or electronics. Inexpensive and easy to set up on multiple engines.
I get multiple starts on multiple radials between charging.
Too simple for some. Simple enough fer me.
Old 09-25-2020, 05:20 AM
  #48160  
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I'm a big believer in simple, the more simple something is decreases the number of failure points.
Old 09-25-2020, 05:43 AM
  #48161  
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Originally Posted by Hobbsy

Exhaust ports quartered toward the rear on the 120 R-3

Actually Dave, not much different at all. Had both; If anything, the 120 is the easier of the two.


Pete,

I figure if I add a 50 Kilo ballast, I cold maybe double the thrust of my 325 radial.

Last edited by Jesse Open; 09-25-2020 at 05:46 AM.
Old 09-25-2020, 07:15 AM
  #48162  
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The only engine that moved my bench was that YS 62.
Old 09-25-2020, 09:23 AM
  #48163  
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Prop out of balance?
Old 09-25-2020, 10:13 AM
  #48164  
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I have an engine where the front bearing bore is opened up from spinning a bearing. I can pretty much just drop the front bearing in when the case is at room temp. Is there a permanent fix? If I try to dimple the bearing bore with a center punch, will the case crack? Anyone tried that to save a crankcase?

Last edited by Glowgeek; 09-25-2020 at 10:17 AM.
Old 09-25-2020, 11:11 AM
  #48165  
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Originally Posted by Glowgeek
I have an engine where the front bearing bore is opened up from spinning a bearing. I can pretty much just drop the front bearing in when the case is at room temp. Is there a permanent fix? If I try to dimple the bearing bore with a center punch, will the case crack? Anyone tried that to save a crankcase?

Lonnie, what about that clear/Blue glue that they use when they push in new piston liners on auto engine blocks. my friend Jack gave me some to use on screws inside my Chevy aluminum rocker covers, he said if I clean the cover and screws well the screws will never come out,
I guess that remains to be seen

Jim
Old 09-25-2020, 11:38 AM
  #48166  
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Originally Posted by the Wasp
Lonnie, what about that clear/Blue glue that they use when they push in new piston liners on auto engine blocks. my friend Jack gave me some to use on screws inside my Chevy aluminum rocker covers, he said if I clean the cover and screws well the screws will never come out,
I guess that remains to be seen

Jim
An anaerobic bearing sealer or flange sealer like Loctite 518 is gap filling up to .012" , solvent resistant and resists heat up the 300°f. It is sometimes used when inserting liners.

The question is, how hard does it cure? Will it resist the compressive loads present even at operating temps? What happens when the bore of the aluminum case expands more than the steel bearing?

Last edited by Glowgeek; 09-25-2020 at 12:03 PM.
Old 09-25-2020, 12:06 PM
  #48167  
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I could tell you never, ever dimple a bearing bore. But that is just me and the formal training I received.
In the application at hand, the small, front bearing does normally float axially in the bore. Bearing races rely on shafts and housings to maintain roundness.

Loctite bearing mount,(forgot the number has some success.)
At the shop, we usually resolved those issues by replacement, plating, sleeving or some other back alley hack shop methods

Loctite 620 or 680 (?)

Last edited by Jesse Open; 09-25-2020 at 12:13 PM.
Old 09-25-2020, 12:39 PM
  #48168  
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I expoxied in a front bearing on an old fs70 a few days ago, it had the same problem, a spun front bearing. It hasn't bugded a thousandsth today over three tanks of fuel and runs just fine. I don't believe the front bearing moves axially at all, doesn't need to when there's a slip fit and clearance for movement at the rear bearing. I know, "we'll just agree to disagree", that is until you measure everything out as I have done and do the math.
Old 09-25-2020, 02:26 PM
  #48169  
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Originally Posted by Glowgeek
I expoxied in a front bearing on an old fs70 a few days ago, it had the same problem, a spun front bearing. It hasn't bugded a thousandsth today over three tanks of fuel and runs just fine. I don't believe the front bearing moves axially at all, doesn't need to when there's a slip fit and clearance for movement at the rear bearing. I know, "we'll just agree to disagree", that is until you measure everything out as I have done and do the math.

Same here, been doing that often, quite often over fifty years, did it for a living.

That work had to last for years, production work, day in day out.

I know enough to disagree, and chuckle a bit too.

Last edited by Jesse Open; 09-25-2020 at 02:32 PM.
Old 09-25-2020, 02:50 PM
  #48170  
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Dave the vents showed up today, thank you!

Todd check your PMs for a tracking number, enjoy it!

Mike
Old 09-25-2020, 07:14 PM
  #48171  
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Originally Posted by Hyjinx
Correct. I marry 3000 maH c cells together in four packs. Then connect the four packs to a common connector. Then the motor gets a wiring harness that grounds with a single 12 gage wire to the case and individuals to the plugs Nice bright glo, easy starts. No obd weight or electronics. Inexpensive and easy to set up on multiple engines.
I get multiple starts on multiple radials between charging.
Too simple for some. Simple enough fer me.
Ever seen a 10.0 Ampere / Hour Panasonic "M" cell NiCd ? Just the ticket for lighting up all those plugs on your radial engines. I will post a pic tomorrow. Have a few new ones here, can send you one . Just about 3/4 the size of a 12 ounce beer can, they pack a good wallop without the inrush overshoot that sometimes happens with pulsed drivers.


Crunch, your wing went out on Wednesday. There are a couple of machining magazines slipped under and taped to the side flap.
Old 09-25-2020, 08:05 PM
  #48172  
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check out this rig. I like it.
Jim
Old 09-25-2020, 08:14 PM
  #48173  
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my favored boomer
Jim
Old 09-26-2020, 04:16 AM
  #48174  
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At one time I thought it would be cool to own many different brands of four stroke engines, So bought, Webra, Enya, OPS, Abitar, Conley, OS, Saito, RCV and Hi Max.

The Hi Max had an unusual feature, you could swap the intake and exhaust and criss cross the push rods in the tube on the back and run them reversed. I had a 91 and a 120. Pictured is a 120, the 91 was exactly the same physical size with a thick cylinder liner.


Hi Max 120 four stroke
Old 09-26-2020, 05:16 AM
  #48175  
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I like that one Dave. A totally new one that I must have missed when they were out.Were they sold at Hobby Lobby ?


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