Author Topic: Two little CHUK's  (Read 16474 times)

Offline Admiral_dk

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Re: Two little CHUK's
« Reply #135 on: September 19, 2019, 05:33:31 PM »
And we have a runner  :cartwheel:  congratulations Jo  :cheers:

Fine tuning will come as you work try other combinations.

Online Jo

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Re: Two little CHUK's
« Reply #136 on: September 19, 2019, 05:49:36 PM »
Thanks Per,

Its going round and round on its own but the burner  :headscratch:

Jo
Enjoyment is more important than achievement.

Offline Zephyrin

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Re: Two little CHUK's
« Reply #137 on: September 19, 2019, 05:57:22 PM »
wow, this is an awesome engine, beautiful.

Quote
We discovered that a Yellow flame works better, possibly due to it having unburnt fuel that continues to burn within the cylinder? A point for debate perhaps?

I think that no unburned fuel could survive in the yellow flame, which contains mostly incomplete combustion products, mainly carbon monoxide.
It is necessary to raise the temperature and give more oxygen to make them burn completely.
this does not happen in the closed cylinder in my opinion.
 
« Last Edit: September 21, 2019, 09:03:06 AM by Zephyrin »

Offline b.lindsey

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Re: Two little CHUK's
« Reply #138 on: September 19, 2019, 06:49:19 PM »
It running....great Jo. Some fine tuning and it will be even better no doubt. Nicely done   :ThumbsUp:

Bill

Online Jo

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Re: Two little CHUK's
« Reply #139 on: September 20, 2019, 08:09:19 AM »
Thanks Guys  :)

Its back to playing around with that burner today. I think it needs a meatier set of flames, maybe I could open up the jet holes  :noidea:

Jo
Enjoyment is more important than achievement.

Offline Chipmaster

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Re: Two little CHUK's
« Reply #140 on: September 20, 2019, 11:34:41 AM »
Hello again Jo,
picking up your last post on the Stuart Major thread here's a picture of my Chuk 1 castings.

Andy


Offline Alyn Foundry

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Re: Two little CHUK's
« Reply #141 on: September 20, 2019, 12:10:05 PM »
Hello again Jo,
picking up your last post on the Stuart Major thread here's a picture of my Chuk 1 castings.

Andy

There's " now't like rubbing salt " eh, Andy?

But, you're missing a couple of " vital " components!!   ;)

Can you spot them?

Cheers Graham.
« Last Edit: September 20, 2019, 12:16:28 PM by Alyn Foundry »

Offline Chipmaster

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Re: Two little CHUK's
« Reply #142 on: September 20, 2019, 12:40:26 PM »
Hi Graham, I couldn't resist that one   :LittleDevil:

Now for your poser,
I don't have a piston, that will be machined from a cast iron bar so I'm guessing that I don't have castings to support the Chuk 1 crankshaft, is there one in the top right corner of your picture?

Cheers
Andy
P.S  Is the gas valve casting for the Allman on the way?

Online Jasonb

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Re: Two little CHUK's
« Reply #143 on: September 20, 2019, 01:24:23 PM »


Cheers
Andy
P.S  Is the gas valve casting for the Allman on the way?

Looks like it is still on the table unless that is Jo's along with her Sphinx nameplate.

That A frame looks easy enough to fabricate, maybe a little Chuky 1 could be on the way, should not take long to knock up if the other ones 12 day build is anything to go by.

Offline Roger B

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Re: Two little CHUK's
« Reply #144 on: September 20, 2019, 02:04:39 PM »
I've just caught up with this rapid build after various bits of travelling and life. Looks excellent and runs  :praise2:  :praise2: How much power would this produce when you get the burner sorted? It seems to be quite a decent size.
Best regards

Roger

Offline Alyn Foundry

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Re: Two little CHUK's
« Reply #145 on: September 20, 2019, 03:21:34 PM »
My goodness, you two stirring the proverbial.  ....   :)

Andy, I'll message you later.

Yes, 12 days in the making Jason but I wonder how many " actual " hours in total?

There's rather a lot of serious distraction going on in the background of my life at the moment, just waiting for normality to reappear, if ever.

TTFN.

Online Jo

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Re: Two little CHUK's
« Reply #146 on: September 20, 2019, 03:45:52 PM »
That's done it  :facepalm: I thought he had forgotten about his missing CHUK 1 casting set. I won't hear the end of it now  :ShakeHead:

Yes, 12 days in the making Jason but I wonder how many " actual " hours in total?

If you noticed he hasn't been in his workshop of late building model engines, he's been working  :stir:

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: Two little CHUK's
« Reply #147 on: September 20, 2019, 04:27:16 PM »
Yes and I was also working when I made the Chuky so would have only been weekends and the odd evening so far less than you retired types can manage :LittleDevil: Plus I did not have castings as a short cut all had to be machined

Jo, what did you end up using for the valve?

Online Jo

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Re: Two little CHUK's
« Reply #148 on: September 20, 2019, 04:50:14 PM »
Being retired means we have lots of important things to do and model engine making only one of the items on the list  ;)

And of course your CNC milling machine takes its time  :facepalm:

Jo, what did you end up using for the valve?

The centre of a jam jar lid  ::)

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: Two little CHUK's
« Reply #149 on: September 20, 2019, 04:58:42 PM »

And of course your CNC milling machine takes its time  :facepalm:


But not having any handwheel does leave your hands free to eat a magnum while it's working away in the background. Don't think I have done anything on it yet that I could have done faster manually :) Once I get air/lub sorted I won't even need to attend to it much while cutting so can do other things.

It would have made Chuky quicker, Rod (Tangler) did some of his on the CNC that came out well.

 

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