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| Gas Firing the Scott Vacuum Engine.......... |
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| Stilldrillin:
--- Quote from: John Rudd on November 29, 2015, 07:35:19 AM ---Burner certainly looks impresseive David...l :bow: What number jet are you using? --- End quote --- Thanks John. It's a No5. Cos' I can't find a No3, anywhere....... :scratch: "My", type of engines, need very little gas. Compared to the available equipment, which is set up for steaming boilers. I have to Mod the tank's needle valve, to give a slower taper. Even then, ¼ turn open is too much! Phil, of Forest Classics, says no-one has any No3 jets in stock. His supplier, will make him, 2,000..... Minimum. Does anyone know where I can buy/ beg/ borrow/ steal, a No3 jet?...... Please! David. |
| SwarfnStuff:
As usual, Brilliant work. :clap: Love the burner flames. Now just need to see the video. Congrats, Bloomin Marvelous. :bow: :beer: |
| philf:
--- Quote from: Stilldrillin on November 29, 2015, 04:01:53 PM --- Does anyone know where I can buy/ beg/ borrow/ steal, a No3 jet?...... Please! David. --- End quote --- David, Plenty of people seem to make their own jets using clock bushes. You then only have to drill a reasonable sized hole and press the bush in. I found reference to a number three jet having a 0.15 mm hole. You can get bushes very cheaply in 0.14 or 0.16mm hole sizes. I just found a supplier in Northern Ireland who does them for £0.75/10 + postage. Unfortunately postage seems to be £3 so you'd be better ordering a few sizes. There are probably lots of other suppliers but some have a minimum order value. http://www.nwcsupplies.com//index.php?main_page=index&cPath=70_1381_1385 I have some 0.16mm bushes but they're watch bushes and are only about 0.5mm thick overall with an oil sink set in so the bore will be very short and may not be suitable. I've just had a look at my drills and my smallest is 0.24mm otherwise I'd have had a go at making one on my watchmaker's lathe. Cheers. Phil. |
| awemawson:
Have you tried PCB drills? They come in all sorts of tiny sizes and are cheap as chips on ebay: http://www.ebay.co.uk/itm/10pcs-Pro-PCB-Print-Circuit-Board-Carbide-Micro-Drill-Bits-Tool-0-1mm-to-2-0-mm-/400950208588?var=&hash=item5d5a7ea84c:m:mVM6zyehgI5kwzP8m0y3QnA |
| Stilldrillin:
--- Quote from: SwarfnStuff on November 30, 2015, 12:55:57 AM ---Love the burner flames. Now just need to see the video. Congrats, --- End quote --- Woa! Steady on, John....... :palm: There's a lot more faffin' about to do, before another vid. I was hoping to get two precise flames, pointing straight down the ports. But, the engine is like a daft kid, at the moment. As soon as it gets going, it blows it's light out! Can't get a gentle flame, close to the port. :scratch: It needs the root of the flame, low down. Out of draught's way. Which angle of attack is preferable........ I think 45* gives best presentation....... I will probably make up, a couple of copper pipe, uprights. Mebbe! :thumbup: David. |
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