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| Gas Firing the Scott Vacuum Engine.......... |
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| Stilldrillin:
Many of you, will remember my Scott build. For those who don't, but have plenty of time. It's here...... http://madmodder.net/index.php/topic,10164.0.html It has run, faultlessly, (so far), "straight out of the box". Two shows, at some 6 hours each. Plus, my own pleasure runs. The only bugbear, has been refilling the meths burner, every 25 mins. The paint, doesn't like meths....... Time to go, gas fired! Bought a tank, from Forest Classics, at the last show. Mounted on 3mm thick aluminium x 50mm wide. The wooden bearers are 47mm apart. I milled a rebate along the inner corners, allowing the alloy strip to slide underneath, like a drawer. The weight of the engine will, (probably), hold it in position. It needs twin flames. So, it needs a T piece, as the burner base. 1/2" brass bar, with 5mm, (M6 tapping size), through holes. Slot drilled, to centre line...... Flux, only where it's needed. Silver solder........ Mount like so. Apply heat....... Happy, with that........ The burner's main components....... Further progress. As, and when....... Thanks for looking in! :thumbup: David. |
| Manxmodder:
Hello David. Glad to see you back on here doing a bit more tinkering,and I can see why you're very happy with that silver soldered Tee piece :clap: :clap: Turned really nicely. Last night I was browsing your thread about the 3 cylinder Mamod steam engine refurb on Model Engine Maker. Very tidy engine she is too :thumbup: Look forward to your next instalment.......OZ. |
| SwarfnStuff:
I, like many others on this forum, recall following your first thread on Scotty, one of your several orphan engines with interest. So, it will be with interest again that I follow the Gas firing of Scotty. :thumbup: Looking again at the previous thread and thinking a tad more I wonder if two burners are really needed or if you could create a wider flame face with a tee at the burner tip? BUT, hey, you have started already and will create another great modification. I await the next installment. Your post are always worth a coffee and read. :coffee: John B |
| Stilldrillin:
OZ, John. Aww..... Thank you! It's good to know my fumblings are appreciated. (Please have a quiet word, with Mrs. Drillin). :thumbup: Today's instalment. Assembled, and gas turned up. We've got twin bunsen burners....... Add a couple of caps....... Already, it's a rapid runner. I've now found the revs are limited, by the follower coming off the cam........ The uprights are too high, at the moment. I will experiment with packing under the engine, before reducing their height to suit. I'm thinking of installing a small pilot light. As the engine still insists on blowing out the flame, when it's too close to the port. But, that might change, with a lower burner height. David. |
| John Rudd:
Burner certainly looks impresseive David...l :bow: What number jet are you using? |
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