Model Engine Maker

Engines => Restoration of Model Engines => Topic started by: Stilldrillin on April 06, 2014, 01:27:08 PM

Title: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on April 06, 2014, 01:27:08 PM

Hi Chaps.

Had a frustrating, past few days. Can't quite get my thoughts, around the vague idea I have. For another Stirling engine.   :thinking:

The recent grimey weather has kept my creaking joints, out of the shop.  :(

Then, there's the spring cleaning......   :facepalm2:

Then, the once I actually did get in there. At the door, a plaintive voice began shouting, "I want to play with Grandad!" Game over.......


So...... I had a look in the toy cupboard.

This came to me, around 3 years ago. A Bengs, Flame Eater. "Nick".

It needs a burner.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040259_zps21619512.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040259_zps21619512.jpg.html)


Don't like that weird "chimney"........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040260_zps4a9fbee6.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040260_zps4a9fbee6.jpg.html)


Only 1 flywheel.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040261_zps997886e5.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040261_zps997886e5.jpg.html)



But...... This one is different to most of my orphans!



It RUNS! Sort of........

http://www.youtube.com/watch?v=FW_Ph1zhn8o


David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: b.lindsey on April 06, 2014, 01:32:28 PM
That's a nice looking engine Nick. Similar to but much more robust  that the poppin from the looks of it. Can't say I've ever seen one with a chimney, but it doesn't look all that much out of place either. And as you say...this one runs at least :)

Bill
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stuart on April 06, 2014, 01:52:01 PM
Ok I will bite

What does the chimdy do, what's it connected to or is it just for show

Stuart
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on April 06, 2014, 02:29:52 PM
Hi Bill, Stuart.

The chimney base, houses a 6mm dia. rubber ball. Which acts as a one way valve. Allowing pressure out. Keeping vacuum in......

Don't know why it needs to look like a Fieldmaster tractor exhaust!  :shrug:

Here's where it originated....... http://www.bengs-modellbau.com/materialkits/flameeater/flameeaternick.php

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stuart on April 06, 2014, 02:41:54 PM
David
That's an interesting twist

I have heard of valves on Stirling engines but not on vacuum engines

Stuart
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: b.lindsey on April 06, 2014, 03:34:04 PM
Wow, that's quite the fancy flame adjuster shown on the web site. I was hoping there might be plans but it looks like its a fully machined kit. Still a very handsome engine though.

Bill
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on April 06, 2014, 06:30:01 PM
Sooo whats the plan marra,
                                              It always reminds me of the Rebbi at least in style .
I had thought they sold a materials and drawing pack but can not find it on the site??
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on April 06, 2014, 06:34:24 PM
Bill, have a look on this site as one of the links has drawings for a very similar engine.Just cannot remember which one :embarassed:
http://www.dampfundmehr.de/site66.htm
This forum has a very active Stirling/Flame licker group and again theres links to loads of drawings
http://dampfforum.info/viewtopic.php?f=2&t=9881
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stuart on April 07, 2014, 11:33:35 AM
Says Restricted forum ?

is it in german ?

if it is I will not bother to register

Stuart
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fumopuc on April 07, 2014, 01:47:17 PM
Hi Stuart, "Dampfforum" is our German forum with a good level of knowledge and a lot of very friendly people.
Their are nearly 970 members from Germany, Austria, Netherland......and also one American.
It is a closed forum, to be protected against all external search engines.
It was founded by Hans Temme, who is gone a couple of years ago and it is now driven by Peter Fallaschek.
Peters private website is the "Dampfundmehr" homepage, mentioned already.
This year we have had our 10 year anniversary.
If you are interested, do not hesitate to register, you are welcome.
The language is German only, all people are posting by their real names and avatars are none or a real picture of yourself.
You are welcome.
 
 
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stuart on April 07, 2014, 03:33:30 PM
Achim.


Thanks for the info but as my German is limited to a very small sub set related to electrical/electronics due to the fact that when I was in work we had some Anton Piller machines and the info on them was in German hence the small amount I know

Stuart
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on April 07, 2014, 07:41:09 PM
Sooo whats the plan marra,
                                              It always reminds me of the Rebbi at least in style .
I had thought they sold a materials and drawing pack but can not find it on the site??
cheers

Well......

It needs a burner.
I don't like the "chimney".
The single flywheel's on the wrong side. (I like to see the crank etc. working).
It runs the wrong direction, and, it's the wrong colour.
Needs a pulley making, for the unused shaft.

Apart from that, it's perfect!  ;)


What's a Rebbi?  :headscratch:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on April 07, 2014, 11:14:32 PM
Hi David, so you are going to be busy on a few mods.
I deleted the drawings I had but when I get sometime off for good behaviour will dig around for them .
Still at her majesties pleasure for the foreseeable future HMP DIY
Cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: stirlinglad on April 11, 2014, 04:50:58 AM
I think that's a smart little one David,,, :LickLips:,,and  it runs even with all it's little problems,,, now thats unusual,,,it must be a fighter..
 or it just likes licking flames :Mad:,,I'll be watchin this with interest :thinking:..

...Mike....
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Jo on April 11, 2014, 08:45:57 AM
 :hi: Mike

Would you like to post an introduction about yourself in the introduction section so the members get to know you better  ;).

Jo
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Ian S C on April 11, 2014, 01:48:33 PM
We have quite a number of people on the Stirling Engine Forum who are non English speakers, Sweden, Hungry, Italy, India, and a number of other countries, a lot of them using Google translator.  It's sometimes a bit difficult translating the translation, but we usually get the idea that is trying to be put across, the German should not be too bad.
                                            Ian S C
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on May 16, 2014, 10:11:39 PM
I finally managed some shop time, this afternoon!  :cartwheel:

Started work on the burner.

Silver soldered the top, into 15mm x 40mm copper pipe. Then drilled for  wick holder and filler plug.

Like this.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140516_154439789_zps5f63506b.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140516_154439789_zps5f63506b.jpg.html)


Experimented with the smallest dia wick I have, (4mm). To determine the optimum wick height.

Shortening the wick tube, 2mm at a time, until the engine doesn't want to run.

Then packing under the burner, back up to working height. Will next, make a tube of the correct length.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140516_154144799_zps001a9bc4.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140516_154144799_zps001a9bc4.jpg.html)


I found revs would improve, with a temporary "canopy"........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140516_154131763_zpse48faaef.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140516_154131763_zpse48faaef.jpg.html)


Think we need something more permanent, above the inlet port.

A few steps in the right direction. At last!  :whoohoo:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: smfr on May 16, 2014, 10:47:06 PM
 :o I hope 'er indoors doesn't mind you using her nice bread knife!  :Lol:

Nice work on the burner.

Simon
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: ths on May 16, 2014, 11:26:48 PM
Bread cuts better when the knife is properly tempered.
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on May 16, 2014, 11:33:41 PM
Sending that pic to youre lass :mischief:
Looking well bet it goes like a hot knife through butter
ok I will go quietly matron
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: b.lindsey on May 17, 2014, 12:44:20 AM
Nice work on the burner David !  I still find that chimney thingy unique. Don't think I've ever seen one  before to be honest. Seems like it would complicate the timing somewhat but still adds an interesting touch to the model.

Bill
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Jo on May 17, 2014, 07:44:19 AM
Looking well bet it goes like a hot knife through butter

 :facepalm2: Somehow we knew that was coming   ;)

It looks like she is trundling in the pic  8).

Jo
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on May 17, 2014, 12:05:15 PM
Iv noticed the chimney on a few continental designed engines that have the ball exhaust valve.
Do you think it may be keeping the flame away from the nitrile exhaust valve rather than just for effect??
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on May 17, 2014, 10:36:24 PM
Thanks Fellas!  :)

I thought the knife blade would cause a few comments.  ;)

It's half, of a pair of leccy carving knife blades. They've been in the, come in handy pile, for some years now.......

Bill.
The "chimney", just positions the nitrile ball in it's seat. The adjusting screw on top, has no effect.
Though, the engine slows to a stop, if the outlet is blocked.

Frazer.
With the pipe in the flame. I would guess it heats the ball.......  :thinking:

Frankly, I don't know what to do with it, if anything.......  :shrug:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on May 17, 2014, 11:55:01 PM
Hi David, maybe cut the pipe off and tap the top of the fitting so that a screw can be used to restrict the balls movement .This will give speed control.
Make a shield with a chimney as an exhaust for the flame.Iv seen it done that way mainly on the continent.
Have a look
http://www.vakuum-und-heisse-gase.de/StartseiteVakuummotoren.html
http://www.dampfundmehr.de/start_dateien/ff_wasser.htm
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on May 18, 2014, 08:58:39 AM
Hi David, maybe cut the pipe off and tap the top of the fitting so that a screw can be used to restrict the balls movement .This will give speed control.
Make a shield with a chimney as an exhaust for the flame.Iv seen it done that way mainly on the continent.
Have a look
http://www.vakuum-und-heisse-gase.de/StartseiteVakuummotoren.html
http://www.dampfundmehr.de/start_dateien/ff_wasser.htm

Frazer.
That's the way my thinking is going.......

Sitting, watching it run, at it's best. I realised, half the flame was above the port. It needed something to hold the heat at port level.

Incidentally..... I hope you realise how inadequate you make me feel. Showing the gems which you find, and make!  :facepalm2:

                                                                     :cheers:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on May 18, 2014, 10:50:26 AM
Hi marra, Iv said before Im a hammer merchant and photographs lie :Jester:
New sign writing on the van
Bodge it and scarper inc
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 10, 2014, 09:55:57 PM
Still not finding much enthusiasm, for this refurb. Dunno why........   :thinking:

Finally got the burner finished!   :)

Soldered in, the wick tube and filler bush. Then fluxed, ready to install base.

Rather enthusiastic with the plumber's solder.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140602_144631632_HDR_zps5a86fa72.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140602_144631632_HDR_zps5a86fa72.jpg.html)


Stand upright. Heat the base, until the solder seeps through.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140602_145122100_zps6e6ac61a.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140602_145122100_zps6e6ac61a.jpg.html)


Tried two different types of wick medium.

Pipe cleaner......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140602_153516798_zpsfedb3c98.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140602_153516798_zpsfedb3c98.jpg.html)


Fiine copper wires......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140602_181457700_zpsfeadac84.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140602_181457700_zpsfeadac84.jpg.html)


Neither were as good as the fibreglass stove rope I usually use.

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140602_152821904_zpsc8d63702.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140602_152821904_zpsc8d63702.jpg.html)


Next up. I'll have a look at the valve area. If I can find a small enough tubular spanner for the pifflin' nuts.....

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: ths on June 11, 2014, 01:34:59 PM
The lack of plumbers solder! Now you've got me! Mr Drillin', I'm watching. So far, your usual standard is on display. Hugh.
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Ian S C on June 11, 2014, 02:34:40 PM
David, instead of copper wire for the wick, try steel/iron wire, I use fine florists wire, stainless might be even better, my theory is that the copper conducts heat away, as does copper tube used for the wick tube, so thin steel tube here too.  The fiber glass should be good.  I'v tried cotton, and that's ok until it runs out of fuel, then the cotton burns.
                                            Ian S C
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 12, 2014, 09:15:03 AM
Hugh.
I think we're slightly at cross purposes......
I'm grumbling at the mass of plumbers solder. Would have been a lot neater, using electical solder!  ::)

Ian.
I'm happy and settled with the stove rope, in it's various diameters to suit differing situations.
But, your previous postings made me have to experiment.  ;)
I've just ordered a bundle of 32gauge florist's wire........


The engine's all held together with M2 threads, having 3mm a/f nuts. The same as the socket in an M4 caphead.  ;)

Reduced the head diameter as far as sensible. Then drilled 2mm x 1/4" deep, to clear the longer thread.

Couple of locked nuts, for a handle........

(http://i110.photobucket.com/albums/n95/Dayjo/IMG_20140610_205206688_zps0fc68cc3.jpg) (http://s110.photobucket.com/user/Dayjo/media/IMG_20140610_205206688_zps0fc68cc3.jpg.html)


Works a treat!

Not happy with the lack of "compression". No head/ cyl seal, won't help!  ::)

The slot for the poppin up n down valve, seems to be a bit deep. At 10thou clearance.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040313_zps293f4ea1.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040313_zps293f4ea1.jpg.html)


Gave everything a rub on fine emery. Reducing slot depth, to give 5thou clearance.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040315_zps934ea34c.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040315_zps934ea34c.jpg.html)


All back together now. Awaiting the chance to give it a run......  :D

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 13, 2014, 09:11:11 PM
And......
The run didn't go well. Stopping every few seconds. :ShakeHead:

I realised, the engine didn't spin over, as it had done previously. Possibly out of alignment, after I had tightened all the loose nuts?  :thinking:

Time to strip further!

Piston. Scuffed one one side. With what looks like ptfe tape packing.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040338_zps9575d515.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040338_zps9575d515.jpg.html)


That's not original, surely? Made from 16mm bar. Not machined on the o/d.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040340_zpsd6db6981.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040340_zpsd6db6981.jpg.html)


Looks like the oiler insert was a bit long. And held fine bits of swarf..........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040342_zpsc1234d9b.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040342_zpsc1234d9b.jpg.html)


Better  view. Bore is badly scuffed, on the other side to the oiler........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040348_zps100abfea.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040348_zps100abfea.jpg.html)


Time for a rebore.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040357_zps71322861.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040357_zps71322861.jpg.html)


And hone........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040358_zpsbe232baa.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040358_zpsbe232baa.jpg.html)


Sheesh!  :shrug:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on June 13, 2014, 10:33:25 PM
Hi David, that piston just dont look right
Thanks for the call
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 13, 2014, 10:38:08 PM
Hi David, that piston just dont look right
Thanks for the call
cheers

Frazer.

Yer right. It don't! But. It will.......  ;)

No problem Marra.  ^-^

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Ian S C on June 14, 2014, 11:43:33 AM
David, did the piston have packing originally?  I would have thought that the packing would be a source of friction, and PTFE expands on heating.  My flame licker has a steel bore, and cast iron piston, no packing, or rings, and just able to slide down the bore under its own weight.
       The scoring on the cylinder/ piston might relate to running two like metals together, which is a no no unless it is cast iron.        Ian S C
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 15, 2014, 10:58:57 PM
Ian.
The bottom of the piston groove has multiple scratches, across it's whole circumference. As though someone has dug out the original packing ring.
But, what the packing was, is anyone's guess......  :thinking:

I was going to replace the piston with another brass one. But have steel, cast iron, aluminium, and graphite in stock. Any suggestions as to what to use?  ;)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on June 15, 2014, 11:02:49 PM
Dont like the horrible dirty stuff but Graphite or cast maybe a good choice :ThumbsUp:
Had a look on Bengs no mention of a sealing ring :shrug:
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fumopuc on June 16, 2014, 04:40:59 AM
Ian.
The bottom of the piston groove has multiple scratches, across it's whole circumference. As though someone has dug out the original packing ring.
But, what the packing was, is anyone's guess......  :thinking:

I was going to replace the piston with another brass one. But have steel, cast iron, aluminium, and graphite in stock. Any suggestions as to what to use?  ;)

David D

Hi David, most of the Bengs (Flammenfresser) flamelicker are running with graphite pistons. Absolutely dry, no oil.
When I have build my engine some years ago, I have made the mistake that some oil find the way into the cylinder. After making a new piston everything was fine.
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 16, 2014, 09:25:22 AM
Frazer, Achim.
Thanks Fellas!  :ThumbsUp:

Looks like, the best pistons are made from mucky stuff........  :(

Hope Mrs. Drillin doesn't notice the footprints. This time!  ;)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fumopuc on June 16, 2014, 12:30:50 PM
Hi David, I have used my shop vacuum cleaner directly at the lathe near the cutting tool. So there was no dust flying around.
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Ian S C on June 16, 2014, 03:39:06 PM
David, I think the Graphite is about the best choice you have there.  The bore must be polished, then the piston turned to just about size, then polished down by wrapping a bit of plain paper around it (still in the lathe), just hold it as you would a bit of abrasive cloth.
     DO NOT GET OIL ON IT.  I'v never used a graphite piston, but it should give good service in a polished bore.
     Graphite pistons in glass cylinders are used as door closers, in the likes of commercial buildings.  At one time they were available as free samples from the manufacturers if you lived in USA.         Ian S C
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on June 16, 2014, 05:04:53 PM
Have you been chatting to our lass .Not only the black foot prints but grubby black marks on the bog seat :naughty: and doors.
A vac is good but not the house one :facepalm: boy was I in bother again not an unusual event round here.
I machine em exactly as Ian describes
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 16, 2014, 09:53:11 PM
Hi David, I have used my shop vacuum cleaner directly at the lathe near the cutting tool. So there was no dust flying around.

Good idea, Achim!  :ThumbsUp:

David, I think the Graphite is about the best choice you have there.  The bore must be polished, then the piston turned to just about size, then polished down by wrapping a bit of plain paper around it (still in the lathe), just hold it as you would a bit of abrasive cloth.
    DO NOT GET OIL ON IT.  I'v never used a graphite piston, but it should give good service in a polished bore.
     Graphite pistons in glass cylinders are used as door closers, in the likes of commercial buildings.  At one time they were available as free samples from the manufacturers if you lived in USA.         Ian S C

Ian.
Needing a polished bore, and your warning about oil........  :-\

I'm thinking about it's later life. Cos, I'm reliably informed, it's going to Norway. When I'm done with it.  :shrug:

Might go with c/i. Or, not.......  :headscratch:


Anyroad! Here's a pic for you........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040366_zps58921b99.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040366_zps58921b99.jpg.html)


32 gauge florist's wire. Seems to work well!  :)

Frazer.
Yer a braver, (or more foolhardy), man than me........  :ShakeHead:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on June 16, 2014, 10:34:18 PM
 :lolb:wor lass knows by now,Then she shouts youre not coming near me with  :naughty:
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on June 16, 2014, 10:35:33 PM
Whats in the Aldi box owt interesting :stir:
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 16, 2014, 10:46:59 PM
Whats in the Aldi box owt interesting :stir:

Just me r/h vernier...... Sorry!  :ROFL:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on June 16, 2014, 11:19:32 PM
Oh just thought Id missed a bargain :ROFL:
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Ian S C on June 17, 2014, 01:24:21 PM
Not too sure on the wear on the cylinder with a cast iron piston, is the cylinder brass or bronze? Should be OK.
     Your burner look like one of mine.  I found the wire wick in volume 1 of Model Engineer 1898.      Ian S C
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on June 17, 2014, 10:53:01 PM
That's a nice engine Ian!
We've very similar burners, too. Seems, wire wicks have stood the test of time......   ;)

I've gone the graphite route.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140617_145633469_HDR_zps52f0ffe3.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140617_145633469_HDR_zps52f0ffe3.jpg.html)


Quite a clean system, vacuuming during machining. Thanks Achim!   :ThumbsUp:

I've now got a roughed out piston........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140617_150301199_zpsd6bf3631.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140617_150301199_zpsd6bf3631.jpg.html)


What's bothering me, is the need for a polished bore. Which I can do, no problem. Probably.

But, it will probably be tapered. Which I can't fix, until I make the piston to fit into the large end.

But, I can't enlarge the tight end by polishing. It will need honing, then polishing........

And probably finish up, oversize........  :facepalm2:


I'll quietly, get on with it, and see what happens.  :)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on August 26, 2014, 08:56:55 AM
By 'ek! It's more than two months, since work stopped on this engine!  :o

From the last line, of the last post. I actually did, "get on with it", at the time.........

Turned a 12mm dia mandrel.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140620_125451183_HDR_zps9aa288fd.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140620_125451183_HDR_zps9aa288fd.jpg.html)



Then turned/ polished the piston to a nice fit in the cylinder......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140620_125659505_zpse0c4c4a2.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140620_125659505_zpse0c4c4a2.jpg.html)


Temporary assembly. Losing one of the M2 nuts, in the process.

It still runs!  Now, needing no warm up! :whoohoo:


http://www.youtube.com/watch?v=TZdg34VJ6Yw


I now, need to think of an "eyebrow", over the flame/ port area.

And, that's the point where it all stopped........  :disappointed:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: b.lindsey on August 26, 2014, 02:05:50 PM
Thanks for the update Nick, David, and a nice runner it is too!  I think you will be pleased with the graphite piston.

Bill

Sorry about that.... :old: indeed...lol
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on August 26, 2014, 05:34:20 PM
Youre lass had you busy :Jester:
Nice to see some progress I thought you had given up on her. :LittleDevil:
Did you see Camsts?? twin it had nice eyebrows
Think Bill is having :old:
Cheers David
best wishes
frazer
Cheers Bill just been cheeeky :mischief:
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on August 26, 2014, 10:53:35 PM
No problem Bill.  :ThumbsUp:

As that was your 2nd time in this write up. I was wondering if I should adopt my new name.......   ^-^

Frazer.

This project, just stopped! I've been busy. One way or another.

That twin is gorgeous. I think I need to ask his permission to show his vid, on here.......

I've finally got Gold Blend working well. Also with a graphite piston........  :)

I'm readying engines, and baking flapjacks, for the Steamtoys show, at the moment.  ;)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on August 26, 2014, 10:59:41 PM
Hi marra, glad to see youve managed some time away from the oven :ThumbsUp:
That twin is some thing special and the builder knows his stuff :NotWorthy: :NotWorthy:
Knee deep in planks at the mo and pencil dust :Lol:
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: b.lindsey on August 27, 2014, 12:05:49 AM
Hmmmm.... David it must have been the Nick in the subject heading that confused, though that is no excuse. Hopefully I am not getting that senile quite yet!! :) Either way, my apology for the faux pas :)

Bill
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on September 01, 2014, 02:04:11 PM
Hi Chaps.

Well..... I could do with an idea, or two. :thinking:

The solder holding the shutter operating arm to the shaft, has let go.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140831_082432288_zpscace4930.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140831_082432288_zpscace4930.jpg.html)


Probably due to the assembly being adjusted for sliding shutter height. The 3mm pivot shaft was also bent, and binding in the bearings.

What I would like is an adjustable/ lockable assembly. Not just soldered in place. Mebbe.........

I'm thinking of a flange, soldered to the shaft. With screws through, into the arm.  :headscratch:

Anyone got any better ideas? Thanks!

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on September 01, 2014, 08:12:20 PM
Have a look at Poppin :ThumbsUp:
The drawings are on the john-tom site
The arm fits upto a shoulder and a nut clamps it into position
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on September 01, 2014, 10:51:39 PM
Have a look at Poppin :ThumbsUp:
The drawings are on the john-tom site
The arm fits upto a shoulder and a nut clamps it into position
cheers

Thanks Frazer.  :ThumbsUp:

That's given me the idea to fix the central arm. And adjust the operating arm position, with a nut or screw.

The operating arm is fixed to the end of the shaft. I'll drill through at the pivot point, tomorrow. And, see what I'm left with......  :thinking:

David D

Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on September 04, 2014, 11:00:42 PM
Thanks Frazer.  :ThumbsUp:

New steel cross shaft. With shutter operating arm, sleevelocked and cross pinned, in place........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140903_143446925_zps76838f3a.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140903_143446925_zps76838f3a.jpg.html)


Cam arm held by M2 caphead, in a recessed 6mm dia washer. Working reliably, again!  :whoohoo:


I've rolled up some stainless steel100 mesh. To make a different wick.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140903_151503237_zps09399815.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140903_151503237_zps09399815.jpg.html)


Works a treat, n all........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140903_152146042_zpsa22f9f88.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140903_152146042_zpsa22f9f88.jpg.html)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: b.lindsey on September 05, 2014, 01:11:37 AM
David, it looks like you are all fixed up and ready to put another 100000 miles on her now :)  Nice repair job!!

Bill
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on September 05, 2014, 06:29:23 PM
Hi marra, glad that little problems sorted :ThumbsUp:
Just needs an eyebrow  :mischief:
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on September 05, 2014, 07:54:19 PM
David, it looks like you are all fixed up and ready to put another 100000 miles on her now :)  Nice repair job!!
Bill

Thanks Bill!
Lets not be too hasty. It will probably take me some while, as yet........  :-\


Hi marra, glad that little problems sorted :ThumbsUp:
Just needs an eyebrow :mischief:
cheers

Heyup. Ma duck!

Eyebrow? All in good time.  ;)

Look! There's one peeping out of here.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140731_150843133_zps0a1b3c15.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140731_150843133_zps0a1b3c15.jpg.html)


Busy times. For some time, yet........  ::)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on September 05, 2014, 08:17:07 PM
 Thats a good use for a SWA gland :ThumbsUp: would never have thought to use em for that
Know the busy feeling :facepalm:and taking wore lass out Sunday She wants to go to Killhope lead mine  :Doh:took me 20 years to get out of the mines :lolb:
needs must
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on September 05, 2014, 10:26:52 PM
Hope You Two have a great day, together.  ^-^

STL, for me, tomorrow. C's been, once. Never again, she says.......  :(

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on September 05, 2014, 10:40:22 PM
 :lolb: tuther way round this end
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on October 01, 2014, 10:22:04 PM
Well..... I'm still here Chaps!

Isn't it amazing, how life gets in the way of progress!  ::)

I fitted the compound slide to my little lathe, and extended the outer taper, at 2.5*.

Then bored the inner taper, at 2* to give a slightly thicker wall, at the head end........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140928_143653404_zps900b60d3.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140928_143653404_zps900b60d3.jpg.html)


Made a disk, to suit the cylinder head pattern. Recessed to suit the tube.

Silver soldered in place. Tidily. Using Jo's dip n dab method.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140930_133412675_HDR_zps2f1aa501.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140930_133412675_HDR_zps2f1aa501.jpg.html)


Milled a 10mm slot, and assembled........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20140930_145455040_zpse0f630d3.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20140930_145455040_zpse0f630d3.jpg.html)


And. It's working even better, now.......  :whoohoo:

pW4IDOdz82w

Can anyone tell, what I'm muttering about? It seemed quite relevant at the time! (http://www.cosgan.de/images/smilie/konfus/n010.gif) (http://www.cosgan.de/smilie.php)

The engine's in pieces now. Being smartened up.
I don't do polished n shiny. But it will look a whole lot better when next you see it.  :ThumbsUp:

Thanks for dropping in!

David D



Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on October 01, 2014, 10:48:16 PM
Ah divent worry marra. Hot air engines make us like that even wore lasses eyes glaze over at the mention of em
Glad the cowl worked out well and youve another one to play with I see :ThumbsUp: good luck
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Jo on October 02, 2014, 06:25:28 AM
Hot air engines make us like that even wore lasses eyes glaze over at the mention of em  :disappointed:

Nice one David,

Don't worry from what I can make out of your mutterings you didn't need to use any magic words to get it running  :lolb:

Jo
Title: Bengs, Flame Eater. "Nick".........
Post by: ths on October 02, 2014, 10:21:32 AM
Nice going Mr Drillin', a lovely runner. Is there a clue to your muttering in the magazine in the vid?

That Frazer is certainly multi-lingual!

Cheers, Hugh.
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on October 02, 2014, 08:34:53 PM
Frazer.

Thanks! (I think).  :thinking:

The eyebrow has made quite a difference to revs and efficiency.

Another? Ah, yes! Seem to attract orphans, don't I!  :facepalm2:


Jo.

I still can't tell what I was on about! Must be me age........  ::)


Hugh.

Thanks! A clue? I doubt it. That's a weekly tv mag. Dated, March, this year........  ;)

Frazer, multi-lingual? Well ar! All I can offer, is...... He has had far more years of hot air frustration, than I have!  :Lol:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on October 17, 2014, 10:20:29 PM
As I'd got the engine running better, it was time to sort the other niggles.......

I wanted the flywheel, on the other side. So, needed to reverse the crank assy.

Shutter arm sleevelocked. All in line........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20141010_105205486_zps07581ec0.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20141010_105205486_zps07581ec0.jpg.html)


Cross pinned.........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20141010_111356931_HDR_zpsfb831f8d.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20141010_111356931_HDR_zpsfb831f8d.jpg.html)


Eased, here n there. Just to make sure, there was room to swing an arm.......

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20141010_094939991_HDR_zpsbe940655.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20141010_094939991_HDR_zpsbe940655.jpg.html)


Varnished, painted, polished. Bearings tightened. I still didn't like the tractor exhaust........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/IMG_20141014_132904375_zpsa51de5a7.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/IMG_20141014_132904375_zpsa51de5a7.jpg.html)


So, I made a pepper pot muffler. It quacks, now!

Adjusting the screw, alters the pitch........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040516_zpsaea395e8.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040516_zpsaea395e8.jpg.html)


Alloy pulley. To cover the spare shaft........

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040515_zps67ba6bdc.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040515_zps67ba6bdc.jpg.html)




(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040517_zpsb07b9cec.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040517_zpsb07b9cec.jpg.html)


Video........

http://www.youtube.com/watch?v=1M5cywYn_ao


All done! Don't like the burner, much. That's a job, for another day...... Or year!  ;)

Thanks for watching!  :ThumbsUp:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on October 17, 2014, 10:51:32 PM
Second thoughts I do like the pepper pot :ThumbsUp: marra
NOW THEN WHATS NEXT :Lol: :Lol: :Lol:
Thanks for simply been there
cheers and best wishes to you and youre better half :Lol: :LittleDevil:
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on October 17, 2014, 10:58:50 PM
Second thoughts I do like the pepper pot :ThumbsUp: marra

I'll be glad, when yer finally make yer mind up!  (http://serve.mysmiley.net/rolleye/rolleye.gif) (http://www.blueislandsdiving.com)


NOW THEN WHATS NEXT :Lol: :Lol: :Lol:

Dunno! Gimme a clue.  ;)


Thanks for simply been there
cheers and best wishes to you and youre better half :Lol: :LittleDevil:

Yer welcome Mate. Thanks......  :ThumbsUp:

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on October 17, 2014, 11:08:40 PM
Huh in my defence its was the crummmy pic you sent me :Jester:
Must be summit hidden in the swag box
cheers
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Don1966 on October 18, 2014, 12:08:28 AM
Another beautiful job Dave, she runs great and thanks for sharing.

Don
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: Stilldrillin on October 18, 2014, 09:00:28 PM
Another beautiful job Dave, she runs great and thanks for sharing.

Don

Thank you, Don. Thanks for all your kind comments, during the saga......   :cheers:



NOW THEN WHATS NEXT :Lol: :Lol: :Lol:

Must be summit hidden in the swag box

Frazer.

I've had a rummage. Will this do?

(http://i110.photobucket.com/albums/n95/Dayjo/Return%20Album/P1040525_zpsdcaa545b.jpg) (http://s110.photobucket.com/user/Dayjo/media/Return%20Album/P1040525_zpsdcaa545b.jpg.html)

David D
Title: Re: Bengs, Flame Eater. "Nick".........
Post by: fcheslop on October 18, 2014, 09:31:47 PM
That should be fun,
I built one to my own design and found its the burner thats the problem .Getting the flame over the valve without interfering with the valve and the weight of the valve mech slows it down as it builds up speed the follower comes off the cam.
maybe just my crap design.
cheers