Author Topic: Four cylinder scale engine  (Read 27810 times)

Offline Tennessee Whiskey

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Re: Four cylinder scale engine
« Reply #90 on: January 03, 2018, 07:39:11 PM »
Just beautiful, and the exhaust note is awesome. So, are castings and plans going to be available :stir:?

Cletus

Offline Art K

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Re: Four cylinder scale engine
« Reply #91 on: January 03, 2018, 08:08:29 PM »
Thomas,
That sounds great and responds to tapping the throttle well. I would say you nailed the carburetor.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline fumopuc

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Re: Four cylinder scale engine
« Reply #92 on: January 03, 2018, 08:35:54 PM »
Hi Thomas,
great sound.
Very well done.
Kind Regards
Achim

Offline yogi

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Re: Four cylinder scale engine
« Reply #93 on: January 03, 2018, 10:29:35 PM »
Fantastic engine Thomas!!!  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Congratulation!  :cheers:

Offline Dave Otto

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Re: Four cylinder scale engine
« Reply #94 on: January 04, 2018, 01:01:35 AM »
Very nice Thomas!
Beautiful work and sounds great!

Dave

Offline kuhncw

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Re: Four cylinder scale engine
« Reply #95 on: January 04, 2018, 02:34:07 AM »
Thomas,

Very well done.  Your engine runs as good as it looks.

Chuck


Offline michelko

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Re: Four cylinder scale engine
« Reply #96 on: January 04, 2018, 07:12:55 AM »
Thomas,
Nice work congrats for reaching the goal of a running engine.
Can you tell what diameter the carb is, and whats the displacement of the engine?
Michael

Offline Roger B

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Re: Four cylinder scale engine
« Reply #97 on: January 04, 2018, 07:26:10 AM »
Roger, actualy coleman fuel is chemically nothing more than catalytic gasoline. Here in germany coleman fuel is not available but we have
 " Reinigungsbenzin / cleaning petrol " for degreasing issues . This is the same stuff.
I started out using normal unleaded petrol but have recently changed to Alkylate fuel that I can get in the local agricultural store, 'Landi' here in Switzerland. This reduces the smell problem.
Best regards

Roger

Offline ThomasM

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Re: Four cylinder scale engine
« Reply #98 on: January 04, 2018, 10:03:29 AM »
Hello,

Thanks for all the kind commends.

Art, you are probably right, maybe i nailed the carburettor. I did one little thing with it that changed the behavior of the carb totally. It improves gasoline suction and turbulence ( and therefore atomization ) at low rpm very well i think.
This is probably of public interrest but i have to proof this bevore and make a drawing bevore i post it.

Roger, with the kind of petrol we use ( alkalythe / cathalytic ) i can even run my hit & miss engine in my living room. But with this engine and the needed 1:50 mix this would probably not the best idea.

Cletus, I will make the plans ready for the engine but it will take a little time. This was the plan from the beginning. Also there is no reason not to cast a few more parts from my casting models if someone wants to build one.

Michael, the engine displacement is 54,23 ccm with a bore of 24 mm and a stroke of 30 mm. The venturi diameter is 4 mm but there is a special slot / groove in the venturi wich makes all the difference i think.

Best regards,
Thomas

Offline Zephyrin

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Re: Four cylinder scale engine
« Reply #99 on: January 04, 2018, 04:46:04 PM »
Fantastic degrees of experiments, thanks for the amount of informations shared ! wow, dedicated work through this successful built, congratulations, this is a very beautiful engine...

Offline Plani

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Re: Four cylinder scale engine
« Reply #100 on: January 04, 2018, 08:34:40 PM »
Fantastic work, Thomas  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Congratulations on this really nicely made and great running engine!

Plani

Offline kuhncw

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Re: Four cylinder scale engine
« Reply #101 on: January 06, 2018, 08:24:50 PM »
Thomas,

What firing order did you choose for your Ford engine?

Thanks.

Chuck

Offline ThomasM

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Re: Four cylinder scale engine
« Reply #102 on: January 06, 2018, 08:36:23 PM »
Thomas,

What firing order did you choose for your Ford engine?

Thanks.

Chuck

Chuck, it fires 1 - 3 - 4 - 2

Thomas

Offline kuhncw

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Re: Four cylinder scale engine
« Reply #103 on: January 07, 2018, 03:21:26 AM »
Thank you, Thomas.

Chuck

Offline b.lindsey

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Re: Four cylinder scale engine
« Reply #104 on: January 07, 2018, 01:39:50 PM »
Thomas, you may wish to put the video and a few finished pictures in the "Showcase" section as well with a link back to the build thread. Thanks for taking us along on the build of this little beauty.

Bill

 

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