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How to build an engine test stand

What do yours look like and any ideas

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cymaz29/11/2018 17:53:16
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8765 forum posts
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I'm going to build a new engine test stand over the weekend. Well, it’s not flying weather...

So, any good ideas and tips out there? Please show me yours blush

jeff2wings29/11/2018 18:16:55
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796 forum posts
1891 photos

Well I made one and started on another one recently

imga0390.jpg

for up too 25 cc

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and this one will take up too 100 ccimga0292.jpg

trebor29/11/2018 19:02:52
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1907 forum posts
214 photos

Renovation of an old one but I got a bit carried away, its got a tensioned throttle leaver fully adjustable for carbs on either side. Polished mahogany base yes

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cymaz29/11/2018 19:40:45
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8765 forum posts
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Like it Treboryes

trebor29/11/2018 20:19:21
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1907 forum posts
214 photos

Its nice just to have an engine mounted for looking at on the windowsill laugh far better than her plant pots and pictures.

cymaz29/11/2018 22:02:12
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8765 forum posts
1190 photos

I was thinking of something like this......or a bit more elaborate.

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cymaz02/12/2018 17:07:34
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8765 forum posts
1190 photos

 

 

 

 

 

 

 

Well after some head scratching, came up with this. The wood was an “ discarded offcut “ from work.

This was the old one...

e58e8d6b-36cc-4c35-98b0-4e294a2f7883.jpeg

Well past its best....

This is the unfinished new one. Hidden servo/ Rx box, away from oily residue...

0a6d5132-c3bc-4721-9257-7bdd17a32250.jpeg

The rest of it...the hole in the top is for a 6oz Dubro tank

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Just the servo bracket ( s) to mount.

Edited By cymaz on 02/12/2018 17:10:29

Doug Campbell04/12/2018 10:31:13
96 forum posts
2 photos

Perhaps Santa will bring you a square.

Engine Doctor04/12/2018 11:03:54
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2317 forum posts
28 photos

Re test stands for beam mounted engines . Make sure you include when building or buy one with a positive stop in front of the engine mounts . The second pic with the laser looks like it  will allow engine to slide out if it vibrates loose !!!

Edited By Engine Doctor on 04/12/2018 11:04:42

Former Member04/12/2018 11:12:25
724 forum posts

[This posting has been removed]

trebor04/12/2018 11:34:01
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1907 forum posts
214 photos

Here we go again laugh

John Stainforth04/12/2018 11:46:13
314 forum posts
38 photos

It is important that the stand itself is well anchored. The engine thrust can easily pull a stand over, so it needs to be tied or held down. I mount my engine stands on a B&D workmate, which is barely up to the task.

cymaz04/12/2018 17:31:53
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8765 forum posts
1190 photos

Gentlemen please.....it’s a work in progress picture. Believe you me...if this stand ever breaks apart when bolted to my work bench , the end of the damn house will go with it angry.....

It’s a test stand not a work of art. I admit the top shelf ( WHICH IS NOW GLUED AND SCREWED) is only out of whack because the 45* bevel is not exact.

Jobs tonight are,

  • cut the bolts to length that secure the metal adjustable mount
  • Drill some hole on the work bench to secure it with 2 ( two ) m10 coach bolts.

Pictures to follow.....nearly done.

Martin Harris04/12/2018 17:50:46
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8881 forum posts
221 photos
Posted by Engine Doctor on 04/12/2018 11:03:54:

Re test stands for beam mounted engines . Make sure you include when building or buy one with a positive stop in front of the engine mounts . The second pic with the laser looks like it will allow engine to slide out if it vibrates loose !!!

Edited By Engine Doctor on 04/12/2018 11:04:42

My thoughts exactly when, around '76, I drilled a couple of holes for some locating stops in my Davies Charlton test stand - well I was using it to run in my (then!) fearsome OPS 60...

I'm pleased to report that the engine stayed in place for the exercise despite it being twice the size the stand was designed for!

...and now I'm my club's safety officer - poacher turned gamekeeper?

cymaz04/12/2018 18:40:24
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8765 forum posts
1190 photos

Progress

bfa865d1-b5fa-4c56-92b2-8bb02a31127c.jpeg

I am thinking of a set of 4 holes in the servo mount and about 5 pairs of holes and blind nuts across the base, that should give enough options for mounting the throttle

e7ba3d2c-2cac-400f-8c15-dfe4becc5046.jpeg

Bruce Collinson04/12/2018 18:57:38
404 forum posts

Here I am again.

I once started an engine bolted to the same test stand as yours, screwed to my workbench, and being run in I redecorated that end of the outside man cave with oil. Wotcher doin bout dat den? Does it point to the outer regions of Cornwall?

BTC

Fatscoleymo04/12/2018 19:00:58
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247 forum posts
86 photos

For throttle I just use a bit of piano wire suitably bent with clevis or z bend on the throttle end, and fed through rubber bands around the tank...easily tweaked for different engines. Bands hold it firmly enough. Seems like a lot of trouble to mount servo, then rx. then battery, then switch..and then you need tx.. A servo tester would be simpler if you wanted to use a servo..

Engine Doctor04/12/2018 19:15:51
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2317 forum posts
28 photos
Posted by Martin Harris on 04/12/2018 17:50:46:
Posted by Engine Doctor on 04/12/2018 11:03:54:

Re test stands for beam mounted engines . Make sure you include when building or buy one with a positive stop in front of the engine mounts . The second pic with the laser looks like it will allow engine to slide out if it vibrates loose !!!

Edited By Engine Doctor on 04/12/2018 11:04:42

My thoughts exactly when, around '76, I drilled a couple of holes for some locating stops in my Davies Charlton test stand - well I was using it to run in my (then!) fearsome OPS 60...

I'm pleased to report that the engine stayed in place for the exercise despite it being twice the size the stand was designed for!

...and now I'm my club's safety officer - poacher turned gamekeeper?

The DC was a great asset back then. I still use one for small diesels but bigger engines would be a bit dodgy .

The best game keepers are reformed poachers . They know the tricks and were lucky in their day yes

cymaz04/12/2018 19:31:56
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8765 forum posts
1190 photos
Posted by Fatscoleymo on 04/12/2018 19:00:58:

For throttle I just use a bit of piano wire suitably bent with clevis or z bend on the throttle end, and fed through rubber bands around the tank...easily tweaked for different engines. Bands hold it firmly enough. Seems like a lot of trouble to mount servo, then rx. then battery, then switch..and then you need tx.. A servo tester would be simpler if you wanted to use a servo..

 

I feel safer just standing back, I really do.

It’s an old Rx that I wouldn’t use in a plane, the switch has been mended with new solder plugs and a spare old batter. So no expense. Everything is what I had spare or would not use in flying. The wood was given. Glue and screws...well everyone has them.

Edited By cymaz on 04/12/2018 19:32:37

cymaz09/12/2018 17:56:46
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8765 forum posts
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Had it’s first run today. Worked a treat,

4bc33758-c798-4903-aeb0-10387ea35d0e.jpeg

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