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Cox Engine of The Month
August-2024
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Page 1 of 1
So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Back a while this thread got me off my butt (sort of)
https://www.coxengineforum.com/t10555-uk-sourced-engine-test-stand?highlight=test+stand
Back story...way back when I retire and decided to Play RC cuz NOW I could afford to....
Got the radio, Got the trainer, Got the Engine, a Super Tiger G90..... Ha...! Hey!!! It was a 60 sized trainer but Tower Tech notes told me the ST G90 was same case, lighter, and MORE POWER than the .60 for same cost.... no briner right.....WRONG!!!
What they did not say was a .90 on a .60 trainer was super EXCESSIVE power and speed due to the propeller it would swing .....Ah, live n learn...grin (ultimately the trainer was powered with a used Magnum Pro .45 with plenty of go for the high wing plane)
So as long as I was spending bucks, might as well get a good engine test stand from Tower also.....to this I added the bottom spine so I could mount it outside in my Jaw Horse work stand
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170610](https://i.servimg.com/u/f58/18/69/14/69/20170610.jpg)
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170611](https://i.servimg.com/u/f58/18/69/14/69/20170611.jpg)
Along the way I got me one of dem Bernie sourced cool blue 1/2a extrusion mounts, and proceeded to craft a multi engine stand for my growing accumulation of engines:
Super Tiger
Torp Green heads
McCoys
Fox 35s and Combat 36s
Nelsons
Johnsons
OS 20s through 35s
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170612](https://i.servimg.com/u/f58/18/69/14/69/20170612.jpg)
I also crafted super simple 1/2a Combat engine stand from 3/4 ply for bladder fed hot rods
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170613](https://i.servimg.com/u/f58/18/69/14/69/20170613.jpg)
Then I got the bug for .35 and larger Stunt planes--- so started accumulating larger engines and the Tower test stand is much to fiddly so I noticed Rsv1 something ....AKA Bob.... got one of the way cool Brit mounts...I had a ME TOO weakness, and ordered one up
Recently receiving a few Balanced and Blue printed Tom Dixon and Randy Smith motors, I decided since the WX suz for flying, I was going to test fire some of my new cool stuff.... BUT Dang... I never did mount up the Brit stand
Point of all this is ----today I got off duff and made this "T" mount to play with tomorrow, after Poly dries
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170614](https://i.servimg.com/u/f58/18/69/14/69/20170614.jpg)
sorry for crummy tography
https://www.coxengineforum.com/t10555-uk-sourced-engine-test-stand?highlight=test+stand
Back story...way back when I retire and decided to Play RC cuz NOW I could afford to....
Got the radio, Got the trainer, Got the Engine, a Super Tiger G90..... Ha...! Hey!!! It was a 60 sized trainer but Tower Tech notes told me the ST G90 was same case, lighter, and MORE POWER than the .60 for same cost.... no briner right.....WRONG!!!
What they did not say was a .90 on a .60 trainer was super EXCESSIVE power and speed due to the propeller it would swing .....Ah, live n learn...grin (ultimately the trainer was powered with a used Magnum Pro .45 with plenty of go for the high wing plane)
So as long as I was spending bucks, might as well get a good engine test stand from Tower also.....to this I added the bottom spine so I could mount it outside in my Jaw Horse work stand
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170610](https://i.servimg.com/u/f58/18/69/14/69/20170610.jpg)
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170611](https://i.servimg.com/u/f58/18/69/14/69/20170611.jpg)
Along the way I got me one of dem Bernie sourced cool blue 1/2a extrusion mounts, and proceeded to craft a multi engine stand for my growing accumulation of engines:
Super Tiger
Torp Green heads
McCoys
Fox 35s and Combat 36s
Nelsons
Johnsons
OS 20s through 35s
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170612](https://i.servimg.com/u/f58/18/69/14/69/20170612.jpg)
I also crafted super simple 1/2a Combat engine stand from 3/4 ply for bladder fed hot rods
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170613](https://i.servimg.com/u/f58/18/69/14/69/20170613.jpg)
Then I got the bug for .35 and larger Stunt planes--- so started accumulating larger engines and the Tower test stand is much to fiddly so I noticed Rsv1 something ....AKA Bob.... got one of the way cool Brit mounts...I had a ME TOO weakness, and ordered one up
Recently receiving a few Balanced and Blue printed Tom Dixon and Randy Smith motors, I decided since the WX suz for flying, I was going to test fire some of my new cool stuff.... BUT Dang... I never did mount up the Brit stand
Point of all this is ----today I got off duff and made this "T" mount to play with tomorrow, after Poly dries
![So you want to play with your engine BEFORE mounting to a plane, car ,or boat 20170614](https://i.servimg.com/u/f58/18/69/14/69/20170614.jpg)
sorry for crummy tography
Last edited by fredvon4 on Sun Jun 04, 2017 10:56 am; edited 1 time in total (Reason for editing : Apology)
fredvon4- Top Poster
Posts : 4007
Join date : 2011-08-26
Age : 69
Location : Lampasas Texas
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Just make sure that the engine stand has the two retaining pins. Otherwise the engine can slip out as shown below (skip to about 5:40);
https://youtu.be/V8RKGNQxkOc?t=5m42s
https://youtu.be/V8RKGNQxkOc?t=5m42s
Surfer_kris- Diamond Member
- Posts : 1909
Join date : 2010-11-20
Location : Sweden
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
LOL good find Kris!
1/2A Nut- Top Poster
- Posts : 3464
Join date : 2013-10-20
Age : 61
Location : Brad in Texas
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
I bet he was hitting the panic button. That was certainly entertaining. I saw a Mccoy .60 come out of the stand one afternoon and it went straight up about 12 feet high and of course came back down. It certainly didn't do that nice anodized red head any good.
Ken Cook- Top Poster
- Posts : 5573
Join date : 2012-03-27
Location : pennsylvania
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
I watched it. I thought it was good for "me".. because I'm curious about diesels/diesel-conversions. Too bad his mount wasn't secure. He didn't have to post that part of his film... but he chose to. It's a reminder......
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Ken Cook wrote: I bet he was hitting the panic button. That was certainly entertaining. I saw a Mccoy .60 come out of the stand one afternoon and it went straight up about 12 feet high and of course came back down. It certainly didn't do that nice anodized red head any good.
Yep, had exactly the same thing happen to me, but was a McCoy .29 at full rpm. Panic is right, you can't think quick enough when something like this happens. It least he got the fuel line off. That's what I intended to do myself, but mine took off and smacked the shed wall hard. Glad I wasn't in the way. Yes, the red head suffered on mine too. I have a brand new one waiting to be installed.
Makes me a lot more careful when I bench-mount engines now.
Oldenginerod- Top Poster
- Posts : 4000
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Looking at his test stand, I noted that his rig is on cabinet drawer glides. I have no idea why but that in itself is dangerous. If you look when he's fiddling with the Tommy bar, the rig is slightly moving. Therefore, he has something not exactly holding it stationary. That could hurt you pretty bad if whatever is holding the glides decided not to hold it any longer if your in front of it.
Ken Cook- Top Poster
- Posts : 5573
Join date : 2012-03-27
Location : pennsylvania
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Yes, the cabinet drawer is an odd thing, perhaps it is there for a trust measurement or something....
Surfer_kris- Diamond Member
- Posts : 1909
Join date : 2010-11-20
Location : Sweden
Re: So you want to play with your engine BEFORE mounting to a plane, car ,or boat
Yea that was scary looking !! Reminds me of the Fox36X coming loose on the old wood test stand i have before doing some rebuilding of the clamps . Wood soaked over years of castor fuel sitting up to soak in (not good)
Atleast he didnt get hurt or hurt someone else !!
![Affraid or WOW!](https://2img.net/i/fa/i/smiles/affraid.gif)
![cheers](https://2img.net/i/fa/i/smiles/icon_cheers.png)
getback- Top Poster
Posts : 10326
Join date : 2013-01-18
Age : 67
Location : julian , NC
Follow up
Well I took the engine departing video to heart and adapted the mount to include positive capture pins
BUT -----I love and hate this mount.... on the one hand it is fairly easy to set up
On the Other the design sux for short nosed engines...most of our factory stunt engines
What I mean is... installed..... the distance from the case to the NVA is too short and adjusting the Needle is a problem
I am able to make it work, but IMO just as fiddly as the lower cost Tower test stand I show
I also have a Tatone version that is about the same problem
Just need to get off my butt and use a lot of the various hard woods I have---- and build a motor stand that ONLY captures the mounting lugs securely...but faster than my screw mounts shown above
That all said.... I got a bunch of new to me Magnum, Evo, OS .20 to .52 engines dialed in and heat cycled ---waiting final break in in flight
Long ago, after about a gallon of fuel in one of my 3 Enya 5224 .35s--- I had decided that I would rather fly than watch burn expensive fuel
FWIIW...I do NOT believe any Cox engine needs breaking in on a bench
and now with my other brand engines, I only really bench run them to see that they start, and what seems to be a good priming method, a good NVA needle set, and if when I pull to glow power, they stay lit and NOT sag
I know there are many different schools of thought on this----
Truth is I have one Enya 5224 .35 ---that despite 5 quarts of fuel---- still seems to me to be very tight....so much so, that I am very tempted to dump a baggie of Duke Fox's magic dust down the venturi as I peak it out
No No Ken Cook!!! No need to tell me how stupid that is.... I know better
One of these days I will actually take apart this pristine (BUT TIGHT) engine, polish the crank, and consider lapping in the piston/liner
BUT -----I love and hate this mount.... on the one hand it is fairly easy to set up
On the Other the design sux for short nosed engines...most of our factory stunt engines
What I mean is... installed..... the distance from the case to the NVA is too short and adjusting the Needle is a problem
I am able to make it work, but IMO just as fiddly as the lower cost Tower test stand I show
I also have a Tatone version that is about the same problem
Just need to get off my butt and use a lot of the various hard woods I have---- and build a motor stand that ONLY captures the mounting lugs securely...but faster than my screw mounts shown above
That all said.... I got a bunch of new to me Magnum, Evo, OS .20 to .52 engines dialed in and heat cycled ---waiting final break in in flight
Long ago, after about a gallon of fuel in one of my 3 Enya 5224 .35s--- I had decided that I would rather fly than watch burn expensive fuel
FWIIW...I do NOT believe any Cox engine needs breaking in on a bench
and now with my other brand engines, I only really bench run them to see that they start, and what seems to be a good priming method, a good NVA needle set, and if when I pull to glow power, they stay lit and NOT sag
I know there are many different schools of thought on this----
Truth is I have one Enya 5224 .35 ---that despite 5 quarts of fuel---- still seems to me to be very tight....so much so, that I am very tempted to dump a baggie of Duke Fox's magic dust down the venturi as I peak it out
No No Ken Cook!!! No need to tell me how stupid that is.... I know better
One of these days I will actually take apart this pristine (BUT TIGHT) engine, polish the crank, and consider lapping in the piston/liner
fredvon4- Top Poster
Posts : 4007
Join date : 2011-08-26
Age : 69
Location : Lampasas Texas
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